diff --git a/Content.Client/AI/ClientPathfindingDebugSystem.cs b/Content.Client/AI/ClientPathfindingDebugSystem.cs
index b796dafed1..1068bcae54 100644
--- a/Content.Client/AI/ClientPathfindingDebugSystem.cs
+++ b/Content.Client/AI/ClientPathfindingDebugSystem.cs
@@ -18,6 +18,7 @@ namespace Content.Client.AI
 #if DEBUG
     public class ClientPathfindingDebugSystem : EntitySystem
     {
+        [Dependency] private readonly IOverlayManager _overlayManager = default!;
         [Dependency] private readonly IPrototypeManager _prototypeManager = default!;
         [Dependency] private readonly IEyeManager _eyeManager = default!;
         [Dependency] private readonly IPlayerManager _playerManager = default!;
diff --git a/Content.Client/Body/UI/BodyScannerBoundUserInterface.cs b/Content.Client/Body/UI/BodyScannerBoundUserInterface.cs
index 417059745a..247ce80b95 100644
--- a/Content.Client/Body/UI/BodyScannerBoundUserInterface.cs
+++ b/Content.Client/Body/UI/BodyScannerBoundUserInterface.cs
@@ -14,6 +14,9 @@ namespace Content.Client.Body.UI
         [ViewVariables]
         private BodyScannerDisplay? _display;
 
+        [ViewVariables]
+        private EntityUid _entity;
+
         public BodyScannerBoundUserInterface(ClientUserInterfaceComponent owner, object uiKey) : base(owner, uiKey) { }
 
         protected override void Open()
@@ -40,7 +43,7 @@ namespace Content.Client.Body.UI
                 throw new ArgumentException($"Received an invalid entity with id {scannerState.Uid} for body scanner with id {Owner.Owner} at {entMan.GetComponent<TransformComponent>(Owner.Owner).MapPosition}");
             }
 
-            _display?.UpdateDisplay(scannerState.Uid);
+            _display?.UpdateDisplay(_entity);
         }
 
         protected override void Dispose(bool disposing)
diff --git a/Content.Client/Body/UI/BodyScannerDisplay.cs b/Content.Client/Body/UI/BodyScannerDisplay.cs
index 4f81434264..852527014e 100644
--- a/Content.Client/Body/UI/BodyScannerDisplay.cs
+++ b/Content.Client/Body/UI/BodyScannerDisplay.cs
@@ -104,7 +104,7 @@ namespace Content.Client.Body.UI
 
         public void UpdateDisplay(EntityUid entity)
         {
-            if(!entity.Valid)
+            if(entity == null)
                 return;
 
             _currentEntity = entity;
@@ -125,7 +125,12 @@ namespace Content.Client.Body.UI
 
         public void BodyPartOnItemSelected(ItemListSelectedEventArgs args)
         {
-            if (IoCManager.Resolve<IEntityManager>().TryGetComponent<SharedBodyComponent>(_currentEntity, out var body))
+            if (_currentEntity == null)
+                return;
+
+            var body = IoCManager.Resolve<IEntityManager>().GetComponentOrNull<SharedBodyComponent>(_currentEntity);
+
+            if (body == null)
             {
                 return;
             }
diff --git a/Content.Client/ContextMenu/UI/EntityMenuPresenter.cs b/Content.Client/ContextMenu/UI/EntityMenuPresenter.cs
index 22c3b7af84..033e23b333 100644
--- a/Content.Client/ContextMenu/UI/EntityMenuPresenter.cs
+++ b/Content.Client/ContextMenu/UI/EntityMenuPresenter.cs
@@ -288,7 +288,7 @@ namespace Content.Client.ContextMenu.UI
 
             // Get the first entity in the sub-menus
             var entity = GetFirstEntityOrNull(element.SubMenu);
-            if (!entity.Valid)
+            if (entity == null)
             {
                 // This whole element has no associated entities. We should remove it
                 element.Dispose();
diff --git a/Content.Client/Decals/DecalOverlay.cs b/Content.Client/Decals/DecalOverlay.cs
index bbd20d1612..5a8169b957 100644
--- a/Content.Client/Decals/DecalOverlay.cs
+++ b/Content.Client/Decals/DecalOverlay.cs
@@ -4,8 +4,10 @@ using Robust.Client.Graphics;
 using Robust.Client.Utility;
 using Robust.Shared.Enums;
 using Robust.Shared.Map;
+using Robust.Shared.Maths;
 using Robust.Shared.Prototypes;
 using Robust.Shared.Utility;
+using Robust.Shared.Maths;
 
 namespace Content.Client.Decals
 {
diff --git a/Content.Client/Hands/HandsGui.xaml.cs b/Content.Client/Hands/HandsGui.xaml.cs
index 1895a5fabf..abe5f35685 100644
--- a/Content.Client/Hands/HandsGui.xaml.cs
+++ b/Content.Client/Hands/HandsGui.xaml.cs
@@ -99,7 +99,8 @@ namespace Content.Client.Hands
                 _itemSlotManager.SetItemSlot(newButton, hand.HeldItem);
 
                 // Show blocked overlay if hand is blocked.
-                newButton.Blocked.Visible = IoCManager.Resolve<IEntityManager>().HasComponent<HandVirtualItemComponent>(hand.HeldItem);
+                newButton.Blocked.Visible =
+                    hand.HeldItem != null && IoCManager.Resolve<IEntityManager>().HasComponent<HandVirtualItemComponent>(hand.HeldItem);
             }
 
             if (TryGetActiveHand(out var activeHand))
diff --git a/Content.Client/Inventory/StrippableBoundUserInterface.cs b/Content.Client/Inventory/StrippableBoundUserInterface.cs
index 2c4884d301..dee8e4f03c 100644
--- a/Content.Client/Inventory/StrippableBoundUserInterface.cs
+++ b/Content.Client/Inventory/StrippableBoundUserInterface.cs
@@ -29,7 +29,7 @@ namespace Content.Client.Inventory
         {
             base.Open();
 
-            _strippingMenu = new StrippingMenu($"{Loc.GetString("strippable-bound-user-interface-stripping-menu-title",("ownerName", IoCManager.Resolve<IEntityManager>().GetComponent<MetaDataComponent>(Owner.Owner).EntityName))}");
+            _strippingMenu = new StrippingMenu($"{Loc.GetString("strippable-bound-user-interface-stripping-menu-title",("ownerName", Name: IoCManager.Resolve<IEntityManager>().GetComponent<MetaDataComponent>(Owner.Owner).EntityName))}");
 
             _strippingMenu.OnClose += Close;
             _strippingMenu.OpenCentered();
diff --git a/Content.Client/MedicalScanner/UI/MedicalScannerWindow.xaml.cs b/Content.Client/MedicalScanner/UI/MedicalScannerWindow.xaml.cs
index fb7c928529..485e9b9070 100644
--- a/Content.Client/MedicalScanner/UI/MedicalScannerWindow.xaml.cs
+++ b/Content.Client/MedicalScanner/UI/MedicalScannerWindow.xaml.cs
@@ -36,7 +36,7 @@ namespace Content.Client.MedicalScanner.UI
             }
             else
             {
-                text.Append($"{Loc.GetString("medical-scanner-window-entity-health-text", ("entityName", entities.GetComponent<MetaDataComponent>(state.Entity.Value).EntityName))}\n");
+                text.Append($"{Loc.GetString("medical-scanner-window-entity-health-text", ("entityName", Name: entities.GetComponent<MetaDataComponent>(state.Entity.Value).EntityName))}\n");
 
                 var totalDamage = state.DamagePerType.Values.Sum();
 
diff --git a/Content.Server/AI/LoadBalancer/AiActionRequestJob.cs b/Content.Server/AI/LoadBalancer/AiActionRequestJob.cs
index 2550656763..8594dc5eb7 100644
--- a/Content.Server/AI/LoadBalancer/AiActionRequestJob.cs
+++ b/Content.Server/AI/LoadBalancer/AiActionRequestJob.cs
@@ -39,7 +39,7 @@ namespace Content.Server.AI.LoadBalancer
 
             var entity = _request.Context.GetState<SelfState>().GetValue();
 
-            if (!IoCManager.Resolve<IEntityManager>().HasComponent<AiControllerComponent>(entity))
+            if (entity == null || !IoCManager.Resolve<IEntityManager>().HasComponent<AiControllerComponent>(entity))
             {
                 return null;
             }
diff --git a/Content.Server/AI/Utility/Actions/Idle/CloseLastEntityStorage.cs b/Content.Server/AI/Utility/Actions/Idle/CloseLastEntityStorage.cs
index 8b99a3ce9d..0c92ca875a 100644
--- a/Content.Server/AI/Utility/Actions/Idle/CloseLastEntityStorage.cs
+++ b/Content.Server/AI/Utility/Actions/Idle/CloseLastEntityStorage.cs
@@ -25,7 +25,7 @@ namespace Content.Server.AI.Utility.Actions.Idle
         {
             var lastStorage = context.GetState<LastOpenedStorageState>().GetValue();
 
-            if (!lastStorage.Valid)
+            if (lastStorage == null)
             {
                 ActionOperators = new Queue<AiOperator>(new AiOperator[]
                 {
diff --git a/Content.Server/AI/Utility/Considerations/ActionBlocker/CanMoveCon.cs b/Content.Server/AI/Utility/Considerations/ActionBlocker/CanMoveCon.cs
index 54114f20af..18ffa4ac79 100644
--- a/Content.Server/AI/Utility/Considerations/ActionBlocker/CanMoveCon.cs
+++ b/Content.Server/AI/Utility/Considerations/ActionBlocker/CanMoveCon.cs
@@ -12,7 +12,7 @@ namespace Content.Server.AI.Utility.Considerations.ActionBlocker
         {
             var self = context.GetState<SelfState>().GetValue();
 
-            if (!self.Valid || !EntitySystem.Get<ActionBlockerSystem>().CanMove(self))
+            if (self == null || !EntitySystem.Get<ActionBlockerSystem>().CanMove(self))
             {
                 return 0.0f;
             }
diff --git a/Content.Server/AI/Utility/Considerations/Combat/Melee/MeleeWeaponDamageCon.cs b/Content.Server/AI/Utility/Considerations/Combat/Melee/MeleeWeaponDamageCon.cs
index cc8f0fe797..6c5c317bed 100644
--- a/Content.Server/AI/Utility/Considerations/Combat/Melee/MeleeWeaponDamageCon.cs
+++ b/Content.Server/AI/Utility/Considerations/Combat/Melee/MeleeWeaponDamageCon.cs
@@ -12,7 +12,7 @@ namespace Content.Server.AI.Utility.Considerations.Combat.Melee
         {
             var target = context.GetState<WeaponEntityState>().GetValue();
 
-            if (!IoCManager.Resolve<IEntityManager>().TryGetComponent(target, out MeleeWeaponComponent? meleeWeaponComponent))
+            if (target == null || !IoCManager.Resolve<IEntityManager>().TryGetComponent(target, out MeleeWeaponComponent? meleeWeaponComponent))
             {
                 return 0.0f;
             }
diff --git a/Content.Server/AI/Utility/Considerations/Combat/Melee/MeleeWeaponEquippedCon.cs b/Content.Server/AI/Utility/Considerations/Combat/Melee/MeleeWeaponEquippedCon.cs
index 1d48a9fdb8..60a383e9cb 100644
--- a/Content.Server/AI/Utility/Considerations/Combat/Melee/MeleeWeaponEquippedCon.cs
+++ b/Content.Server/AI/Utility/Considerations/Combat/Melee/MeleeWeaponEquippedCon.cs
@@ -10,10 +10,14 @@ namespace Content.Server.AI.Utility.Considerations.Combat.Melee
     {
         protected override float GetScore(Blackboard context)
         {
-            return IoCManager.Resolve<IEntityManager>()
-                .HasComponent<MeleeWeaponComponent>(context.GetState<EquippedEntityState>().GetValue())
-                ? 1.0f
-                : 0.0f;
+            var equipped = context.GetState<EquippedEntityState>().GetValue();
+
+            if (equipped == null)
+            {
+                return 0.0f;
+            }
+
+            return IoCManager.Resolve<IEntityManager>().HasComponent<MeleeWeaponComponent>(equipped) ? 1.0f : 0.0f;
         }
     }
 }
diff --git a/Content.Server/AI/Utility/Considerations/Combat/Melee/MeleeWeaponSpeedCon.cs b/Content.Server/AI/Utility/Considerations/Combat/Melee/MeleeWeaponSpeedCon.cs
index 1ab36c3b9f..d84c977509 100644
--- a/Content.Server/AI/Utility/Considerations/Combat/Melee/MeleeWeaponSpeedCon.cs
+++ b/Content.Server/AI/Utility/Considerations/Combat/Melee/MeleeWeaponSpeedCon.cs
@@ -12,7 +12,7 @@ namespace Content.Server.AI.Utility.Considerations.Combat.Melee
         {
             var target = context.GetState<WeaponEntityState>().GetValue();
 
-            if (!IoCManager.Resolve<IEntityManager>().TryGetComponent(target, out MeleeWeaponComponent? meleeWeaponComponent))
+            if (target == null || !IoCManager.Resolve<IEntityManager>().TryGetComponent(target, out MeleeWeaponComponent? meleeWeaponComponent))
             {
                 return 0.0f;
             }
diff --git a/Content.Server/AI/Utility/Considerations/Combat/TargetHealthCon.cs b/Content.Server/AI/Utility/Considerations/Combat/TargetHealthCon.cs
index 95b7a2c37a..47f23d0f41 100644
--- a/Content.Server/AI/Utility/Considerations/Combat/TargetHealthCon.cs
+++ b/Content.Server/AI/Utility/Considerations/Combat/TargetHealthCon.cs
@@ -12,7 +12,7 @@ namespace Content.Server.AI.Utility.Considerations.Combat
         {
             var target = context.GetState<TargetEntityState>().GetValue();
 
-            if (!IoCManager.Resolve<IEntityManager>().TryGetComponent(target, out DamageableComponent? damageableComponent))
+            if (target == null || !IoCManager.Resolve<IEntityManager>().TryGetComponent(target, out DamageableComponent? damageableComponent))
             {
                 return 0.0f;
             }
diff --git a/Content.Server/AI/Utility/Considerations/Combat/TargetIsCritCon.cs b/Content.Server/AI/Utility/Considerations/Combat/TargetIsCritCon.cs
index 7a62879524..37b3f99552 100644
--- a/Content.Server/AI/Utility/Considerations/Combat/TargetIsCritCon.cs
+++ b/Content.Server/AI/Utility/Considerations/Combat/TargetIsCritCon.cs
@@ -12,7 +12,7 @@ namespace Content.Server.AI.Utility.Considerations.Combat
         {
             var target = context.GetState<TargetEntityState>().GetValue();
 
-            if (!IoCManager.Resolve<IEntityManager>().TryGetComponent(target, out MobStateComponent? mobState))
+            if (target == null || !IoCManager.Resolve<IEntityManager>().TryGetComponent(target, out MobStateComponent? mobState))
             {
                 return 0.0f;
             }
diff --git a/Content.Server/AI/Utility/Considerations/Combat/TargetIsDeadCon.cs b/Content.Server/AI/Utility/Considerations/Combat/TargetIsDeadCon.cs
index 4ccc3d7190..26622c9723 100644
--- a/Content.Server/AI/Utility/Considerations/Combat/TargetIsDeadCon.cs
+++ b/Content.Server/AI/Utility/Considerations/Combat/TargetIsDeadCon.cs
@@ -12,7 +12,7 @@ namespace Content.Server.AI.Utility.Considerations.Combat
         {
             var target = context.GetState<TargetEntityState>().GetValue();
 
-            if (!IoCManager.Resolve<IEntityManager>().TryGetComponent(target, out MobStateComponent? mobState))
+            if (target == null || !IoCManager.Resolve<IEntityManager>().TryGetComponent(target, out MobStateComponent? mobState))
             {
                 return 0.0f;
             }
diff --git a/Content.Server/AI/Utility/Considerations/Containers/TargetAccessibleCon.cs b/Content.Server/AI/Utility/Considerations/Containers/TargetAccessibleCon.cs
index 371896c161..ebed8d3c34 100644
--- a/Content.Server/AI/Utility/Considerations/Containers/TargetAccessibleCon.cs
+++ b/Content.Server/AI/Utility/Considerations/Containers/TargetAccessibleCon.cs
@@ -43,7 +43,7 @@ namespace Content.Server.AI.Utility.Considerations.Containers
 
             var owner = context.GetState<SelfState>().GetValue();
 
-            if (!owner.Valid)
+            if (owner == null)
             {
                 return 0;
             }
diff --git a/Content.Server/AI/Utility/Considerations/Hands/FreeHandCon.cs b/Content.Server/AI/Utility/Considerations/Hands/FreeHandCon.cs
index e2e82b30fe..029775d5f3 100644
--- a/Content.Server/AI/Utility/Considerations/Hands/FreeHandCon.cs
+++ b/Content.Server/AI/Utility/Considerations/Hands/FreeHandCon.cs
@@ -12,7 +12,7 @@ namespace Content.Server.AI.Utility.Considerations.Hands
         {
             var owner = context.GetState<SelfState>().GetValue();
 
-            if (!IoCManager.Resolve<IEntityManager>().TryGetComponent(owner, out HandsComponent? handsComponent))
+            if (owner == null || !IoCManager.Resolve<IEntityManager>().TryGetComponent(owner, out HandsComponent? handsComponent))
             {
                 return 0.0f;
             }
diff --git a/Content.Server/AI/Utility/Considerations/Inventory/CanPutTargetInInventoryCon.cs b/Content.Server/AI/Utility/Considerations/Inventory/CanPutTargetInInventoryCon.cs
index 8c98253d6a..14ccfbf4d2 100644
--- a/Content.Server/AI/Utility/Considerations/Inventory/CanPutTargetInInventoryCon.cs
+++ b/Content.Server/AI/Utility/Considerations/Inventory/CanPutTargetInInventoryCon.cs
@@ -16,7 +16,7 @@ namespace Content.Server.AI.Utility.Considerations.Inventory
             // If not then check if we have a free hand
             var target = context.GetState<TargetEntityState>().GetValue();
 
-            if (!IoCManager.Resolve<IEntityManager>().HasComponent<ItemComponent>(target))
+            if (target == null || !IoCManager.Resolve<IEntityManager>().HasComponent<ItemComponent>(target))
             {
                 return 0.0f;
             }
diff --git a/Content.Server/AI/Utility/Considerations/Inventory/TargetInOurInventoryCon.cs b/Content.Server/AI/Utility/Considerations/Inventory/TargetInOurInventoryCon.cs
index 5d5bb917b6..b7fcd97b1c 100644
--- a/Content.Server/AI/Utility/Considerations/Inventory/TargetInOurInventoryCon.cs
+++ b/Content.Server/AI/Utility/Considerations/Inventory/TargetInOurInventoryCon.cs
@@ -13,7 +13,7 @@ namespace Content.Server.AI.Utility.Considerations.Inventory
         {
             var target = context.GetState<TargetEntityState>().GetValue();
 
-            if (!IoCManager.Resolve<IEntityManager>().HasComponent<ItemComponent>(target))
+            if (target == null || !IoCManager.Resolve<IEntityManager>().HasComponent<ItemComponent>(target))
             {
                 return 0.0f;
             }
diff --git a/Content.Server/AI/Utility/Considerations/Nutrition/Drink/DrinkValueCon.cs b/Content.Server/AI/Utility/Considerations/Nutrition/Drink/DrinkValueCon.cs
index 9a0b16ece6..e7a7fbc5ca 100644
--- a/Content.Server/AI/Utility/Considerations/Nutrition/Drink/DrinkValueCon.cs
+++ b/Content.Server/AI/Utility/Considerations/Nutrition/Drink/DrinkValueCon.cs
@@ -13,7 +13,8 @@ namespace Content.Server.AI.Utility.Considerations.Nutrition.Drink
         {
             var target = context.GetState<TargetEntityState>().GetValue();
 
-            if (IoCManager.Resolve<IEntityManager>().Deleted(target)
+            if (target == null
+                || IoCManager.Resolve<IEntityManager>().Deleted(target)
                 || !EntitySystem.Get<SolutionContainerSystem>().TryGetSolution(target, DrinkComponent.DefaultSolutionName, out var drink))
             {
                 return 0.0f;
diff --git a/Content.Server/AI/Utility/Considerations/Nutrition/Drink/ThirstCon.cs b/Content.Server/AI/Utility/Considerations/Nutrition/Drink/ThirstCon.cs
index b90f80bdae..6ea21c75db 100644
--- a/Content.Server/AI/Utility/Considerations/Nutrition/Drink/ThirstCon.cs
+++ b/Content.Server/AI/Utility/Considerations/Nutrition/Drink/ThirstCon.cs
@@ -13,7 +13,7 @@ namespace Content.Server.AI.Utility.Considerations.Nutrition.Drink
         {
             var owner = context.GetState<SelfState>().GetValue();
 
-            if (!IoCManager.Resolve<IEntityManager>().TryGetComponent(owner, out ThirstComponent? thirst))
+            if (owner == null || !IoCManager.Resolve<IEntityManager>().TryGetComponent(owner, out ThirstComponent? thirst))
             {
                 return 0.0f;
             }
diff --git a/Content.Server/AI/Utility/Considerations/Nutrition/Food/FoodValueCon.cs b/Content.Server/AI/Utility/Considerations/Nutrition/Food/FoodValueCon.cs
index 28b003f2a8..3341d8a193 100644
--- a/Content.Server/AI/Utility/Considerations/Nutrition/Food/FoodValueCon.cs
+++ b/Content.Server/AI/Utility/Considerations/Nutrition/Food/FoodValueCon.cs
@@ -13,9 +13,8 @@ namespace Content.Server.AI.Utility.Considerations.Nutrition.Food
         {
             var target = context.GetState<TargetEntityState>().GetValue();
 
-            if (!IoCManager.Resolve<IEntityManager>().TryGetComponent<FoodComponent?>(target, out var foodComp)
-                || !EntitySystem.Get<SolutionContainerSystem>()
-                    .TryGetSolution(target, foodComp.SolutionName, out var food))
+            if (target == null || !IoCManager.Resolve<IEntityManager>().TryGetComponent<FoodComponent?>(target, out var foodComp)
+                               || !EntitySystem.Get<SolutionContainerSystem>().TryGetSolution(target, foodComp.SolutionName, out var food))
             {
                 return 0.0f;
             }
diff --git a/Content.Server/AI/Utility/Considerations/Nutrition/Food/HungerCon.cs b/Content.Server/AI/Utility/Considerations/Nutrition/Food/HungerCon.cs
index 29a0157683..33cc9dca90 100644
--- a/Content.Server/AI/Utility/Considerations/Nutrition/Food/HungerCon.cs
+++ b/Content.Server/AI/Utility/Considerations/Nutrition/Food/HungerCon.cs
@@ -14,7 +14,7 @@ namespace Content.Server.AI.Utility.Considerations.Nutrition.Food
         {
             var owner = context.GetState<SelfState>().GetValue();
 
-            if (!IoCManager.Resolve<IEntityManager>().TryGetComponent(owner, out HungerComponent? hunger))
+            if (owner == null || !IoCManager.Resolve<IEntityManager>().TryGetComponent(owner, out HungerComponent? hunger))
             {
                 return 0.0f;
             }
diff --git a/Content.Server/AI/Utility/Considerations/State/StoredStateEntityIsNullCon.cs b/Content.Server/AI/Utility/Considerations/State/StoredStateEntityIsNullCon.cs
index 28b80f6f5a..17c41986ae 100644
--- a/Content.Server/AI/Utility/Considerations/State/StoredStateEntityIsNullCon.cs
+++ b/Content.Server/AI/Utility/Considerations/State/StoredStateEntityIsNullCon.cs
@@ -28,7 +28,7 @@ namespace Content.Server.AI.Utility.Considerations.State
             }
 
             context.GetStoredState(stateData, out StoredStateData<EntityUid> state);
-            return state.GetValue().Valid ? 0.0f : 1.0f;
+            return state.GetValue() == null ? 1.0f : 0.0f;
         }
     }
 }
diff --git a/Content.Server/AI/Utility/NpcBehaviorManager.cs b/Content.Server/AI/Utility/NpcBehaviorManager.cs
index ef1513797c..f1760ef3e2 100644
--- a/Content.Server/AI/Utility/NpcBehaviorManager.cs
+++ b/Content.Server/AI/Utility/NpcBehaviorManager.cs
@@ -28,6 +28,7 @@ namespace Content.Server.AI.Utility
     internal sealed class NpcBehaviorManager : INpcBehaviorManager
     {
         [Dependency] private readonly IDynamicTypeFactory _typeFactory = default!;
+        [Dependency] private readonly IEntityManager _entityManager = default!;
 
         private readonly NpcActionComparer _comparer = new();
 
diff --git a/Content.Server/Actions/Actions/DisarmAction.cs b/Content.Server/Actions/Actions/DisarmAction.cs
index 7e9ac324a6..0fb7209a16 100644
--- a/Content.Server/Actions/Actions/DisarmAction.cs
+++ b/Content.Server/Actions/Actions/DisarmAction.cs
@@ -83,10 +83,10 @@ namespace Content.Server.Actions.Actions
                 SoundSystem.Play(Filter.Pvs(args.Performer), PunchMissSound.GetSound(), args.Performer, AudioHelpers.WithVariation(0.025f));
 
                 args.Performer.PopupMessageOtherClients(Loc.GetString("disarm-action-popup-message-other-clients",
-                                                                      ("performerName", entMan.GetComponent<MetaDataComponent>(args.Performer).EntityName),
-                                                                      ("targetName", entMan.GetComponent<MetaDataComponent>(args.Target).EntityName)));
+                                                                      ("performerName", Name: entMan.GetComponent<MetaDataComponent>(args.Performer).EntityName),
+                                                                      ("targetName", Name: entMan.GetComponent<MetaDataComponent>(args.Target).EntityName)));
                 args.Performer.PopupMessageCursor(Loc.GetString("disarm-action-popup-message-cursor",
-                                                                ("targetName", entMan.GetComponent<MetaDataComponent>(args.Target).EntityName)));
+                                                                ("targetName", Name: entMan.GetComponent<MetaDataComponent>(args.Target).EntityName)));
                 system.SendLunge(angle, args.Performer);
                 return;
             }
diff --git a/Content.Server/Atmos/EntitySystems/AirtightSystem.cs b/Content.Server/Atmos/EntitySystems/AirtightSystem.cs
index 8921d7d986..4a481f0195 100644
--- a/Content.Server/Atmos/EntitySystems/AirtightSystem.cs
+++ b/Content.Server/Atmos/EntitySystems/AirtightSystem.cs
@@ -14,6 +14,7 @@ namespace Content.Server.Atmos.EntitySystems
     {
         [Dependency] private readonly IMapManager _mapManager = default!;
         [Dependency] private readonly AtmosphereSystem _atmosphereSystem = default!;
+        [Dependency] private readonly SpreaderSystem _spreaderSystem = default!;
 
         public override void Initialize()
         {
diff --git a/Content.Server/Body/Components/MechanismComponent.cs b/Content.Server/Body/Components/MechanismComponent.cs
index 1b8c60e87d..ec5f538c4c 100644
--- a/Content.Server/Body/Components/MechanismComponent.cs
+++ b/Content.Server/Body/Components/MechanismComponent.cs
@@ -88,7 +88,7 @@ namespace Content.Server.Body.Components
             else // If surgery cannot be performed, show message saying so.
             {
                 eventArgs.Target?.PopupMessage(eventArgs.User,
-                    Loc.GetString("mechanism-component-no-way-to-install-message", ("partName", _entities.GetComponent<MetaDataComponent>(Owner).EntityName)));
+                    Loc.GetString("mechanism-component-no-way-to-install-message", ("partName", Name: _entities.GetComponent<MetaDataComponent>(Owner).EntityName)));
             }
         }
 
@@ -114,7 +114,7 @@ namespace Content.Server.Body.Components
             if (!OptionsCache.TryGetValue(key, out var targetObject))
             {
                 BodyCache.Owner.PopupMessage(PerformerCache.Value,
-                    Loc.GetString("mechanism-component-no-useful-way-to-use-message",("partName", _entities.GetComponent<MetaDataComponent>(Owner).EntityName)));
+                    Loc.GetString("mechanism-component-no-useful-way-to-use-message",("partName", Name: _entities.GetComponent<MetaDataComponent>(Owner).EntityName)));
                 return;
             }
 
diff --git a/Content.Server/Body/Systems/LungSystem.cs b/Content.Server/Body/Systems/LungSystem.cs
index 0f002de83d..c68392d01b 100644
--- a/Content.Server/Body/Systems/LungSystem.cs
+++ b/Content.Server/Body/Systems/LungSystem.cs
@@ -115,6 +115,8 @@ public class LungSystem : EntitySystem
         // TODO Jesus Christ make this event based.
         if (mech.Body != null &&
             EntityManager.TryGetComponent((mech.Body).Owner, out InternalsComponent? internals) &&
+            internals.BreathToolEntity != null &&
+            internals.GasTankEntity != null &&
             EntityManager.TryGetComponent(internals.BreathToolEntity, out BreathToolComponent? breathTool) &&
             breathTool.IsFunctional &&
             EntityManager.TryGetComponent(internals.GasTankEntity, out GasTankComponent? gasTank))
diff --git a/Content.Server/Botany/Components/PlantHolderComponent.cs b/Content.Server/Botany/Components/PlantHolderComponent.cs
index a5d74ac2cf..9c15a5e5ab 100644
--- a/Content.Server/Botany/Components/PlantHolderComponent.cs
+++ b/Content.Server/Botany/Components/PlantHolderComponent.cs
@@ -684,7 +684,7 @@ namespace Content.Server.Botany.Components
                 }
 
                 user.PopupMessageCursor(Loc.GetString("plant-holder-component-already-seeded-message",
-                    ("name", _entMan.GetComponent<MetaDataComponent>(Owner).EntityName)));
+                    ("name", Name: _entMan.GetComponent<MetaDataComponent>(Owner).EntityName)));
                 return false;
             }
 
@@ -693,9 +693,9 @@ namespace Content.Server.Botany.Components
                 if (WeedLevel > 0)
                 {
                     user.PopupMessageCursor(Loc.GetString("plant-holder-component-remove-weeds-message",
-                        ("name", _entMan.GetComponent<MetaDataComponent>(Owner).EntityName)));
+                        ("name", Name: _entMan.GetComponent<MetaDataComponent>(Owner).EntityName)));
                     user.PopupMessageOtherClients(Loc.GetString("plant-holder-component-remove-weeds-others-message",
-                        ("otherName", _entMan.GetComponent<MetaDataComponent>(user).EntityName)));
+                        ("otherName", Name: _entMan.GetComponent<MetaDataComponent>(user).EntityName)));
                     WeedLevel = 0;
                     UpdateSprite();
                 }
@@ -712,9 +712,9 @@ namespace Content.Server.Botany.Components
                 if (Seed != null)
                 {
                     user.PopupMessageCursor(Loc.GetString("plant-holder-component-remove-plant-message",
-                        ("name", _entMan.GetComponent<MetaDataComponent>(Owner).EntityName)));
+                        ("name", Name: _entMan.GetComponent<MetaDataComponent>(Owner).EntityName)));
                     user.PopupMessageOtherClients(Loc.GetString("plant-holder-component-remove-plant-others-message",
-                        ("name", _entMan.GetComponent<MetaDataComponent>(user).EntityName)));
+                        ("name", Name: _entMan.GetComponent<MetaDataComponent>(user).EntityName)));
                     RemovePlant();
                 }
                 else
diff --git a/Content.Server/Botany/Components/SeedExtractorComponent.cs b/Content.Server/Botany/Components/SeedExtractorComponent.cs
index 82b1d1825d..c2a95b37ce 100644
--- a/Content.Server/Botany/Components/SeedExtractorComponent.cs
+++ b/Content.Server/Botany/Components/SeedExtractorComponent.cs
@@ -30,7 +30,7 @@ namespace Content.Server.Botany.Components
 
             if (_entMan.TryGetComponent(eventArgs.Using, out ProduceComponent? produce) && produce.Seed != null)
             {
-                eventArgs.User.PopupMessageCursor(Loc.GetString("seed-extractor-component-interact-message",("name", _entMan.GetComponent<MetaDataComponent>(eventArgs.Using).EntityName)));
+                eventArgs.User.PopupMessageCursor(Loc.GetString("seed-extractor-component-interact-message",("name", Name: _entMan.GetComponent<MetaDataComponent>(eventArgs.Using).EntityName)));
 
                 _entMan.QueueDeleteEntity(eventArgs.Using);
 
diff --git a/Content.Server/Botany/Seed.cs b/Content.Server/Botany/Seed.cs
index 56995c40c5..c9123aac14 100644
--- a/Content.Server/Botany/Seed.cs
+++ b/Content.Server/Botany/Seed.cs
@@ -280,7 +280,8 @@ namespace Content.Server.Botany
 
         public IEnumerable<EntityUid> AutoHarvest(EntityCoordinates position, int yieldMod = 1)
         {
-            if (position.IsValid(IoCManager.Resolve<IEntityManager>()) && ProductPrototypes.Count > 0)
+            if (position.IsValid(IoCManager.Resolve<IEntityManager>()) && ProductPrototypes != null &&
+                ProductPrototypes.Count > 0)
                 return GenerateProduct(position, yieldMod);
 
             return Enumerable.Empty<EntityUid>();
@@ -290,10 +291,10 @@ namespace Content.Server.Botany
         {
             AddToDatabase();
 
-            if (!user.Valid)
+            if (user == null)
                 return Enumerable.Empty<EntityUid>();
 
-            if (ProductPrototypes.Count == 0 || Yield <= 0)
+            if (ProductPrototypes == null || ProductPrototypes.Count == 0 || Yield <= 0)
             {
                 user.PopupMessageCursor(Loc.GetString("botany-harvest-fail-message"));
                 return Enumerable.Empty<EntityUid>();
@@ -311,8 +312,14 @@ namespace Content.Server.Botany
                 if (yieldMod < 0)
                 {
                     yieldMod = 1;
+                    totalYield = Yield;
                 }
-                totalYield = Math.Max(1, Yield * yieldMod);
+                else
+                {
+                    totalYield = Yield * yieldMod;
+                }
+
+                totalYield = Math.Max(1, totalYield);
             }
 
             var random = IoCManager.Resolve<IRobustRandom>();
diff --git a/Content.Server/Chat/Managers/ChatManager.cs b/Content.Server/Chat/Managers/ChatManager.cs
index e050fee103..02cb35f2f4 100644
--- a/Content.Server/Chat/Managers/ChatManager.cs
+++ b/Content.Server/Chat/Managers/ChatManager.cs
@@ -197,7 +197,7 @@ namespace Content.Server.Chat.Managers
             var msg = _netManager.CreateNetMessage<MsgChatMessage>();
             msg.Channel = ChatChannel.Local;
             msg.Message = message;
-            msg.MessageWrap = Loc.GetString("chat-manager-entity-say-wrap-message",("entityName", _entManager.GetComponent<MetaDataComponent>(source).EntityName));
+            msg.MessageWrap = Loc.GetString("chat-manager-entity-say-wrap-message",("entityName", Name: _entManager.GetComponent<MetaDataComponent>(source).EntityName));
             msg.SenderEntity = source;
             msg.HideChat = hideChat;
             _netManager.ServerSendToMany(msg, clients);
@@ -234,7 +234,7 @@ namespace Content.Server.Chat.Managers
             var msg = _netManager.CreateNetMessage<MsgChatMessage>();
             msg.Channel = ChatChannel.Emotes;
             msg.Message = action;
-            msg.MessageWrap = Loc.GetString("chat-manager-entity-me-wrap-message", ("entityName", _entManager.GetComponent<MetaDataComponent>(source).EntityName));
+            msg.MessageWrap = Loc.GetString("chat-manager-entity-me-wrap-message", ("entityName",Name: _entManager.GetComponent<MetaDataComponent>(source).EntityName));
             msg.SenderEntity = source;
             _netManager.ServerSendToMany(msg, clients);
         }
diff --git a/Content.Server/Climbing/Components/ClimbableComponent.cs b/Content.Server/Climbing/Components/ClimbableComponent.cs
index 84db4dba7c..4dcb0c58cc 100644
--- a/Content.Server/Climbing/Components/ClimbableComponent.cs
+++ b/Content.Server/Climbing/Components/ClimbableComponent.cs
@@ -115,7 +115,7 @@ namespace Content.Server.Climbing.Components
                 return false;
             }
 
-            if (!_entities.HasComponent<ClimbingComponent>(dragged))
+            if (target == null || !_entities.HasComponent<ClimbingComponent>(dragged))
             {
                 reason = Loc.GetString("comp-climbable-cant-climb");
                 return false;
diff --git a/Content.Server/Clothing/MagbootsSystem.cs b/Content.Server/Clothing/MagbootsSystem.cs
index e193e979fc..89d795852d 100644
--- a/Content.Server/Clothing/MagbootsSystem.cs
+++ b/Content.Server/Clothing/MagbootsSystem.cs
@@ -25,7 +25,7 @@ namespace Content.Server.Clothing
 
         private void AddToggleVerb(EntityUid uid, MagbootsComponent component, GetActivationVerbsEvent args)
         {
-            if (!args.User.Valid || !args.CanAccess || !args.CanInteract)
+            if (args.User == null || !args.CanAccess || !args.CanInteract)
                 return;
 
             Verb verb = new();
diff --git a/Content.Server/Construction/Conditions/AirlockBolted.cs b/Content.Server/Construction/Conditions/AirlockBolted.cs
index 4a597d6807..db5c289747 100644
--- a/Content.Server/Construction/Conditions/AirlockBolted.cs
+++ b/Content.Server/Construction/Conditions/AirlockBolted.cs
@@ -37,10 +37,10 @@ namespace Content.Server.Construction.Conditions
 
             if (airlock.BoltsDown != Value)
             {
-                if (Value)
-                    args.PushMarkup(Loc.GetString("construction-examine-condition-airlock-bolt", ("entityName", entMan.GetComponent<MetaDataComponent>(entity).EntityName)) + "\n");
+                if (Value == true)
+                    args.PushMarkup(Loc.GetString("construction-examine-condition-airlock-bolt", ("entityName", Name: entMan.GetComponent<MetaDataComponent>(entity).EntityName)) + "\n");
                 else
-                    args.PushMarkup(Loc.GetString("construction-examine-condition-airlock-unbolt", ("entityName", entMan.GetComponent<MetaDataComponent>(entity).EntityName)) + "\n");
+                    args.PushMarkup(Loc.GetString("construction-examine-condition-airlock-unbolt", ("entityName", Name: entMan.GetComponent<MetaDataComponent>(entity).EntityName)) + "\n");
                 return true;
             }
 
diff --git a/Content.Server/Construction/Conditions/DoorWelded.cs b/Content.Server/Construction/Conditions/DoorWelded.cs
index 817cecb599..2ba8f99c92 100644
--- a/Content.Server/Construction/Conditions/DoorWelded.cs
+++ b/Content.Server/Construction/Conditions/DoorWelded.cs
@@ -36,9 +36,9 @@ namespace Content.Server.Construction.Conditions
             if (door.IsWeldedShut != Welded)
             {
                 if (Welded == true)
-                    args.PushMarkup(Loc.GetString("construction-examine-condition-door-weld", ("entityName", entMan.GetComponent<MetaDataComponent>(entity).EntityName)) + "\n");
+                    args.PushMarkup(Loc.GetString("construction-examine-condition-door-weld", ("entityName", Name: entMan.GetComponent<MetaDataComponent>(entity).EntityName)) + "\n");
                 else
-                    args.PushMarkup(Loc.GetString("construction-examine-condition-door-unweld", ("entityName", entMan.GetComponent<MetaDataComponent>(entity).EntityName)) + "\n");
+                    args.PushMarkup(Loc.GetString("construction-examine-condition-door-unweld", ("entityName", Name: entMan.GetComponent<MetaDataComponent>(entity).EntityName)) + "\n");
                 return true;
             }
 
diff --git a/Content.Server/Disposal/Unit/Components/DisposalUnitComponent.cs b/Content.Server/Disposal/Unit/Components/DisposalUnitComponent.cs
index 7548a8cb4e..54c63038c8 100644
--- a/Content.Server/Disposal/Unit/Components/DisposalUnitComponent.cs
+++ b/Content.Server/Disposal/Unit/Components/DisposalUnitComponent.cs
@@ -90,7 +90,7 @@ namespace Content.Server.Disposal.Unit.Components
 
         private bool PlayerCanUse(EntityUid player)
         {
-            if (!player.Valid)
+            if (player == null)
             {
                 return false;
             }
diff --git a/Content.Server/Explosion/EntitySystems/TriggerSystem.cs b/Content.Server/Explosion/EntitySystems/TriggerSystem.cs
index ce20a1d209..a282d38b30 100644
--- a/Content.Server/Explosion/EntitySystems/TriggerSystem.cs
+++ b/Content.Server/Explosion/EntitySystems/TriggerSystem.cs
@@ -39,6 +39,7 @@ namespace Content.Server.Explosion.EntitySystems
     {
         [Dependency] private readonly ExplosionSystem _explosions = default!;
         [Dependency] private readonly FlashSystem _flashSystem = default!;
+        [Dependency] private readonly AdminLogSystem _logSystem = default!;
 
         public override void Initialize()
         {
diff --git a/Content.Server/Ghost/Components/GhostRadioComponent.cs b/Content.Server/Ghost/Components/GhostRadioComponent.cs
index e612f8069a..382424b138 100644
--- a/Content.Server/Ghost/Components/GhostRadioComponent.cs
+++ b/Content.Server/Ghost/Components/GhostRadioComponent.cs
@@ -36,7 +36,7 @@ namespace Content.Server.Ghost.Components
             msg.Channel = ChatChannel.Radio;
             msg.Message = message;
             //Square brackets are added here to avoid issues with escaping
-            msg.MessageWrap = Loc.GetString("chat-radio-message-wrap", ("channel", $"\\[{channel}\\]"), ("name", _entMan.GetComponent<MetaDataComponent>(speaker).EntityName));
+            msg.MessageWrap = Loc.GetString("chat-radio-message-wrap", ("channel", $"\\[{channel}\\]"), ("name", Name: _entMan.GetComponent<MetaDataComponent>(speaker).EntityName));
             _netManager.ServerSendMessage(msg, playerChannel);
         }
 
diff --git a/Content.Server/Hands/Components/HandsComponent.cs b/Content.Server/Hands/Components/HandsComponent.cs
index 5cf16bb977..ba07419840 100644
--- a/Content.Server/Hands/Components/HandsComponent.cs
+++ b/Content.Server/Hands/Components/HandsComponent.cs
@@ -99,21 +99,21 @@ namespace Content.Server.Hands.Components
             var source = @event.Source;
             var target = @event.Target;
 
-            if (source.Valid)
+            if (source != null)
             {
                 SoundSystem.Play(Filter.Pvs(source), _disarmedSound.GetSound(), source, AudioHelpers.WithVariation(0.025f));
 
-                if (target.Valid)
+                if (target != null)
                 {
                     if (ActiveHand != null && Drop(ActiveHand, false))
                     {
-                        source.PopupMessageOtherClients(Loc.GetString("hands-component-disarm-success-others-message", ("disarmer", _entities.GetComponent<MetaDataComponent>(source).EntityName), ("disarmed", _entities.GetComponent<MetaDataComponent>(target).EntityName)));
-                        source.PopupMessageCursor(Loc.GetString("hands-component-disarm-success-message", ("disarmed", _entities.GetComponent<MetaDataComponent>(target).EntityName)));
+                        source.PopupMessageOtherClients(Loc.GetString("hands-component-disarm-success-others-message", ("disarmer", Name: _entities.GetComponent<MetaDataComponent>(source).EntityName), ("disarmed", Name: _entities.GetComponent<MetaDataComponent>(target).EntityName)));
+                        source.PopupMessageCursor(Loc.GetString("hands-component-disarm-success-message", ("disarmed", Name: _entities.GetComponent<MetaDataComponent>(target).EntityName)));
                     }
                     else
                     {
-                        source.PopupMessageOtherClients(Loc.GetString("hands-component-shove-success-others-message", ("shover", _entities.GetComponent<MetaDataComponent>(source).EntityName), ("shoved", _entities.GetComponent<MetaDataComponent>(target).EntityName)));
-                        source.PopupMessageCursor(Loc.GetString("hands-component-shove-success-message", ("shoved", _entities.GetComponent<MetaDataComponent>(target).EntityName)));
+                        source.PopupMessageOtherClients(Loc.GetString("hands-component-shove-success-others-message", ("shover", Name: _entities.GetComponent<MetaDataComponent>(source).EntityName), ("shoved", Name: _entities.GetComponent<MetaDataComponent>(target).EntityName)));
+                        source.PopupMessageCursor(Loc.GetString("hands-component-shove-success-message", ("shoved", Name: _entities.GetComponent<MetaDataComponent>(target).EntityName)));
                     }
                 }
             }
diff --git a/Content.Server/Hands/Systems/HandsSystem.cs b/Content.Server/Hands/Systems/HandsSystem.cs
index edbb88c727..8b216ed1b4 100644
--- a/Content.Server/Hands/Systems/HandsSystem.cs
+++ b/Content.Server/Hands/Systems/HandsSystem.cs
@@ -33,6 +33,7 @@ namespace Content.Server.Hands.Systems
     [UsedImplicitly]
     internal sealed class HandsSystem : SharedHandsSystem
     {
+        [Dependency] private readonly InteractionSystem _interactionSystem = default!;
         [Dependency] private readonly StackSystem _stackSystem = default!;
         [Dependency] private readonly HandVirtualItemSystem _virtualItemSystem = default!;
         [Dependency] private readonly ActionBlockerSystem _actionBlockerSystem = default!;
diff --git a/Content.Server/Headset/HeadsetComponent.cs b/Content.Server/Headset/HeadsetComponent.cs
index 5c85c1acfa..7ebed04056 100644
--- a/Content.Server/Headset/HeadsetComponent.cs
+++ b/Content.Server/Headset/HeadsetComponent.cs
@@ -70,7 +70,7 @@ namespace Content.Server.Headset
                 msg.Channel = ChatChannel.Radio;
                 msg.Message = message;
                 //Square brackets are added here to avoid issues with escaping
-                msg.MessageWrap = Loc.GetString("chat-radio-message-wrap", ("channel", $"\\[{channel}\\]"), ("name", _entMan.GetComponent<MetaDataComponent>(source).EntityName));
+                msg.MessageWrap = Loc.GetString("chat-radio-message-wrap", ("channel", $"\\[{channel}\\]"), ("name", Name: _entMan.GetComponent<MetaDataComponent>(source).EntityName));
                 _netManager.ServerSendMessage(msg, playerChannel);
             }
         }
diff --git a/Content.Server/Inventory/Components/InventoryComponent.cs b/Content.Server/Inventory/Components/InventoryComponent.cs
index c31eafeda2..f0aade547d 100644
--- a/Content.Server/Inventory/Components/InventoryComponent.cs
+++ b/Content.Server/Inventory/Components/InventoryComponent.cs
@@ -468,7 +468,7 @@ namespace Content.Server.Inventory.Components
                         var canEquip = CanEquip(msg.Inventoryslot, activeHand, true, out var reason);
                         _hoverEntity =
                             new KeyValuePair<Slots, (EntityUid entity, bool fits)>(msg.Inventoryslot,
-                                (activeHand.Owner, canEquip));
+                                (Uid: activeHand.Owner, canEquip));
 
                         Dirty();
                     }
diff --git a/Content.Server/Light/EntitySystems/LightReplacerSystem.cs b/Content.Server/Light/EntitySystems/LightReplacerSystem.cs
index 0b4d81a21e..77a00db063 100644
--- a/Content.Server/Light/EntitySystems/LightReplacerSystem.cs
+++ b/Content.Server/Light/EntitySystems/LightReplacerSystem.cs
@@ -67,12 +67,17 @@ namespace Content.Server.Light.EntitySystems
             // standard interaction checks
             if (!_blocker.CanInteract(eventArgs.User)) return;
 
-            // want to insert a new light bulb?
-            if (EntityManager.TryGetComponent(eventArgs.Used, out LightBulbComponent ? bulb))
-                eventArgs.Handled = TryInsertBulb(uid, eventArgs.Used, eventArgs.User, true, component, bulb);
-            // add bulbs from storage?
-            else if (EntityManager.TryGetComponent(eventArgs.Used, out ServerStorageComponent? storage))
-                eventArgs.Handled = TryInsertBulbsFromStorage(uid, eventArgs.Used, eventArgs.User, component, storage);
+            if (eventArgs.Used != null)
+            {
+                var usedUid = eventArgs.Used;
+
+                // want to insert a new light bulb?
+                if (EntityManager.TryGetComponent(usedUid, out LightBulbComponent ? bulb))
+                    eventArgs.Handled = TryInsertBulb(uid, usedUid, eventArgs.User, true, component, bulb);
+                // add bulbs from storage?
+                else if (EntityManager.TryGetComponent(usedUid, out ServerStorageComponent? storage))
+                    eventArgs.Handled = TryInsertBulbsFromStorage(uid, usedUid, eventArgs.User, component, storage);
+            }
         }
 
         /// <summary>
@@ -103,7 +108,7 @@ namespace Content.Server.Light.EntitySystems
                 (e) => EntityManager.GetComponentOrNull<LightBulbComponent>(e)?.Type == fixture.BulbType);
 
             // found bulb in inserted storage
-            if (bulb.Valid)
+            if (bulb != null)
             {
                 // try to remove it
                 var hasRemoved = replacer.InsertedBulbs.Remove(bulb);
diff --git a/Content.Server/Lock/LockSystem.cs b/Content.Server/Lock/LockSystem.cs
index 3c7aaf5730..44948fd3cf 100644
--- a/Content.Server/Lock/LockSystem.cs
+++ b/Content.Server/Lock/LockSystem.cs
@@ -64,7 +64,7 @@ namespace Content.Server.Lock
             args.PushText(Loc.GetString(lockComp.Locked
                     ? "lock-comp-on-examined-is-locked"
                     : "lock-comp-on-examined-is-unlocked",
-                ("entityName", EntityManager.GetComponent<MetaDataComponent>(lockComp.Owner).EntityName)));
+                ("entityName", Name: EntityManager.GetComponent<MetaDataComponent>(lockComp.Owner).EntityName)));
         }
 
         public bool TryLock(EntityUid uid, EntityUid user, LockComponent? lockComp = null)
@@ -78,10 +78,13 @@ namespace Content.Server.Lock
             if (!HasUserAccess(uid, user, quiet: false))
                 return false;
 
-            lockComp.Owner.PopupMessage(user, Loc.GetString("lock-comp-do-lock-success", ("entityName", EntityManager.GetComponent<MetaDataComponent>(lockComp.Owner).EntityName)));
+            lockComp.Owner.PopupMessage(user, Loc.GetString("lock-comp-do-lock-success", ("entityName",Name: EntityManager.GetComponent<MetaDataComponent>(lockComp.Owner).EntityName)));
             lockComp.Locked = true;
 
-            SoundSystem.Play(Filter.Pvs(lockComp.Owner), lockComp.LockSound.GetSound(), lockComp.Owner, AudioParams.Default.WithVolume(-5));
+            if(lockComp.LockSound != null)
+            {
+                SoundSystem.Play(Filter.Pvs(lockComp.Owner), lockComp.LockSound.GetSound(), lockComp.Owner, AudioParams.Default.WithVolume(-5));
+            }
 
             if (EntityManager.TryGetComponent(lockComp.Owner, out AppearanceComponent? appearanceComp))
             {
@@ -107,7 +110,10 @@ namespace Content.Server.Lock
             lockComp.Owner.PopupMessage(user, Loc.GetString("lock-comp-do-unlock-success", ("entityName", Name: EntityManager.GetComponent<MetaDataComponent>(lockComp.Owner).EntityName)));
             lockComp.Locked = false;
 
-            SoundSystem.Play(Filter.Pvs(lockComp.Owner), lockComp.UnlockSound.GetSound(), lockComp.Owner, AudioParams.Default.WithVolume(-5));
+            if(lockComp.UnlockSound != null)
+            {
+                SoundSystem.Play(Filter.Pvs(lockComp.Owner), lockComp.UnlockSound.GetSound(), lockComp.Owner, AudioParams.Default.WithVolume(-5));
+            }
 
             if (EntityManager.TryGetComponent(lockComp.Owner, out AppearanceComponent? appearanceComp))
             {
diff --git a/Content.Server/Maps/GameMapManager.cs b/Content.Server/Maps/GameMapManager.cs
index e7baf76595..efabeeae3e 100644
--- a/Content.Server/Maps/GameMapManager.cs
+++ b/Content.Server/Maps/GameMapManager.cs
@@ -21,6 +21,7 @@ public class GameMapManager : IGameMapManager
     [Dependency] private readonly IPlayerManager _playerManager = default!;
     [Dependency] private readonly IRobustRandom _random = default!;
     [Dependency] private readonly IChatManager _chatManager = default!;
+    [Dependency] private readonly IMapLoader _mapLoader = default!;
 
     private GameMapPrototype _currentMap = default!;
     private bool _currentMapForced;
diff --git a/Content.Server/Nutrition/EntitySystems/DrinkSystem.cs b/Content.Server/Nutrition/EntitySystems/DrinkSystem.cs
index bbfdd7bd69..d1b4362a68 100644
--- a/Content.Server/Nutrition/EntitySystems/DrinkSystem.cs
+++ b/Content.Server/Nutrition/EntitySystems/DrinkSystem.cs
@@ -263,7 +263,7 @@ namespace Content.Server.Nutrition.EntitySystems
             if (!drink.Opened)
             {
                 _popupSystem.PopupEntity(Loc.GetString("drink-component-try-use-drink-not-open",
-                    ("owner", EntityManager.GetComponent<MetaDataComponent>(drink.Owner).EntityName)), uid, Filter.Entities(userUid));
+                    ("owner", Name: EntityManager.GetComponent<MetaDataComponent>(drink.Owner).EntityName)), uid, Filter.Entities(userUid));
                 return true;
             }
 
@@ -274,7 +274,7 @@ namespace Content.Server.Nutrition.EntitySystems
                 drinkSolution.DrainAvailable <= 0)
             {
                 _popupSystem.PopupEntity(Loc.GetString("drink-component-try-use-drink-is-empty",
-                    ("entity", EntityManager.GetComponent<MetaDataComponent>(drink.Owner).EntityName)), uid, Filter.Entities(userUid));
+                    ("entity", Name: EntityManager.GetComponent<MetaDataComponent>(drink.Owner).EntityName)), uid, Filter.Entities(userUid));
                 return true;
             }
 
@@ -345,7 +345,7 @@ namespace Content.Server.Nutrition.EntitySystems
             if (!drink.Opened)
             {
                 _popupSystem.PopupEntity(Loc.GetString("drink-component-try-use-drink-not-open",
-                    ("owner", EntityManager.GetComponent<MetaDataComponent>(drink.Owner).EntityName)), uid, Filter.Entities(userUid));
+                    ("owner", Name: EntityManager.GetComponent<MetaDataComponent>(drink.Owner).EntityName)), uid, Filter.Entities(userUid));
                 return true;
             }
 
@@ -353,7 +353,7 @@ namespace Content.Server.Nutrition.EntitySystems
                 drinkSolution.DrainAvailable <= 0)
             {
                 _popupSystem.PopupEntity(Loc.GetString("drink-component-try-use-drink-is-empty",
-                    ("entity", EntityManager.GetComponent<MetaDataComponent>(drink.Owner).EntityName)), uid, Filter.Entities(userUid));
+                    ("entity", Name: EntityManager.GetComponent<MetaDataComponent>(drink.Owner).EntityName)), uid, Filter.Entities(userUid));
                 return true;
             }
 
diff --git a/Content.Server/Nutrition/EntitySystems/FoodSystem.cs b/Content.Server/Nutrition/EntitySystems/FoodSystem.cs
index 10123efc6e..79a46755bd 100644
--- a/Content.Server/Nutrition/EntitySystems/FoodSystem.cs
+++ b/Content.Server/Nutrition/EntitySystems/FoodSystem.cs
@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
 using Content.Server.Body.Components;
 using Content.Server.Body.Systems;
 using Content.Server.Chemistry.EntitySystems;
@@ -18,13 +19,17 @@ using Content.Shared.Interaction;
 using Content.Shared.Interaction.Helpers;
 using Content.Shared.Inventory;
 using Content.Shared.MobState.Components;
+using Content.Shared.Tag;
 using Content.Shared.Verbs;
 using Robust.Shared.Audio;
 using Robust.Shared.GameObjects;
 using Robust.Shared.IoC;
 using Robust.Shared.Localization;
 using Robust.Shared.Player;
+using System.Collections.Generic;
 using Robust.Shared.Utility;
+using Content.Server.Inventory.Components;
+using Content.Shared.Inventory;
 using Content.Shared.Hands;
 
 namespace Content.Server.Nutrition.EntitySystems
diff --git a/Content.Server/PAI/PAISystem.cs b/Content.Server/PAI/PAISystem.cs
index 195e5aa519..0908fa117e 100644
--- a/Content.Server/PAI/PAISystem.cs
+++ b/Content.Server/PAI/PAISystem.cs
@@ -129,7 +129,7 @@ namespace Content.Server.PAI
 
         private void AddWipeVerb(EntityUid uid, PAIComponent pai, GetActivationVerbsEvent args)
         {
-            if (!args.User.Valid || !args.CanAccess || !args.CanInteract)
+            if (args.User == null || !args.CanAccess || !args.CanInteract)
                 return;
 
             if (EntityManager.TryGetComponent<MindComponent>(uid, out var mind) && mind.HasMind)
diff --git a/Content.Server/Power/EntitySystems/CableMultitoolSystem.cs b/Content.Server/Power/EntitySystems/CableMultitoolSystem.cs
index de063e9a3a..bbcc87d782 100644
--- a/Content.Server/Power/EntitySystems/CableMultitoolSystem.cs
+++ b/Content.Server/Power/EntitySystems/CableMultitoolSystem.cs
@@ -48,7 +48,7 @@ namespace Content.Server.Power.EntitySystems
                     var held = hand.HeldEntity;
                     // Pulsing is hardcoded here because I don't think it needs to be more complex than that right now.
                     // Update if I'm wrong.
-                    if (held.Valid && _toolSystem.HasQuality(held, "Pulsing"))
+                    if ((held != null) && _toolSystem.HasQuality(held, "Pulsing"))
                     {
                         args.PushMarkup(GenerateCableMarkup(uid));
                         // args.PushFancyUpdatingPowerGraphs(uid);
diff --git a/Content.Server/PowerCell/Components/PowerCellSlotComponent.cs b/Content.Server/PowerCell/Components/PowerCellSlotComponent.cs
index 5e8561793b..d5138ef1bc 100644
--- a/Content.Server/PowerCell/Components/PowerCellSlotComponent.cs
+++ b/Content.Server/PowerCell/Components/PowerCellSlotComponent.cs
@@ -134,9 +134,12 @@ namespace Content.Server.PowerCell.Components
             if (cell == null || !CanRemoveCell) return null;
             if (!_cellContainer.Remove(cell.Owner)) return null;
             //Dirty();
-            if (!_entities.TryGetComponent(user, out HandsComponent? hands) || !hands.PutInHand(_entities.GetComponent<ItemComponent>(cell.Owner)))
+            if (user != null)
             {
-                _entities.GetComponent<TransformComponent>(cell.Owner).Coordinates = _entities.GetComponent<TransformComponent>(user).Coordinates;
+                if (!_entities.TryGetComponent(user, out HandsComponent? hands) || !hands.PutInHand(_entities.GetComponent<ItemComponent>(cell.Owner)))
+                {
+                    _entities.GetComponent<TransformComponent>(cell.Owner).Coordinates = _entities.GetComponent<TransformComponent>(user).Coordinates;
+                }
             }
             else
             {
diff --git a/Content.Server/RCD/Systems/RCDSystem.cs b/Content.Server/RCD/Systems/RCDSystem.cs
index 8a4087e1d0..a26afd0556 100644
--- a/Content.Server/RCD/Systems/RCDSystem.cs
+++ b/Content.Server/RCD/Systems/RCDSystem.cs
@@ -235,7 +235,7 @@ namespace Content.Server.RCD.Systems
             mode = (++mode) % _modes.Length; //Then, do a rollover on the value so it doesnt hit an invalid state
             rcd.Mode = (RcdMode) mode; //Finally, cast the newly acquired int mode to an RCDmode so we can use it.
 
-            if (user.Valid)
+            if (user != null)
             {
                 var msg = Loc.GetString("rcd-component-change-mode", ("mode", rcd.Mode.ToString()));
                 rcd.Owner.PopupMessage(user, msg); //Prints an overhead message above the RCD
diff --git a/Content.Server/Radio/Components/IRadio.cs b/Content.Server/Radio/Components/IRadio.cs
index cbabdcac4e..cb5077a8ca 100644
--- a/Content.Server/Radio/Components/IRadio.cs
+++ b/Content.Server/Radio/Components/IRadio.cs
@@ -1,5 +1,6 @@
 using Robust.Shared.GameObjects;
 using System.Collections.Generic;
+using Robust.Shared.GameObjects;
 
 namespace Content.Server.Radio.Components
 {
diff --git a/Content.Server/Storage/Components/CursedEntityStorageComponent.cs b/Content.Server/Storage/Components/CursedEntityStorageComponent.cs
index d4276711dd..061e471b28 100644
--- a/Content.Server/Storage/Components/CursedEntityStorageComponent.cs
+++ b/Content.Server/Storage/Components/CursedEntityStorageComponent.cs
@@ -39,7 +39,7 @@ namespace Content.Server.Storage.Components
 
             var lockerEnt = _robustRandom.Pick(lockers);
 
-            if (!lockerEnt.Valid) return; // No valid lockers anywhere.
+            if (lockerEnt == null) return; // No valid lockers anywhere.
 
             var locker = _entMan.GetComponent<EntityStorageComponent>(lockerEnt);
 
diff --git a/Content.Server/Stunnable/StunSystem.cs b/Content.Server/Stunnable/StunSystem.cs
index ebefa243f5..c7c0a47baf 100644
--- a/Content.Server/Stunnable/StunSystem.cs
+++ b/Content.Server/Stunnable/StunSystem.cs
@@ -40,16 +40,16 @@ namespace Content.Server.Stunnable
             var source = args.Source;
             var target = args.Target;
 
-            if (source.Valid)
+            if (source != null)
             {
                 var knock = EntityManager.GetComponent<KnockedDownComponent>(uid);
                 SoundSystem.Play(Filter.Pvs(source), knock.StunAttemptSound.GetSound(), source, AudioHelpers.WithVariation(0.025f));
 
-                if (target.Valid)
+                if (target != null)
                 {
                     // TODO: Use PopupSystem
-                    source.PopupMessageOtherClients(Loc.GetString("stunned-component-disarm-success-others", ("source", EntityManager.GetComponent<MetaDataComponent>(source).EntityName), ("target", EntityManager.GetComponent<MetaDataComponent>(target).EntityName)));
-                    source.PopupMessageCursor(Loc.GetString("stunned-component-disarm-success", ("target", EntityManager.GetComponent<MetaDataComponent>(target).EntityName)));
+                    source.PopupMessageOtherClients(Loc.GetString("stunned-component-disarm-success-others", ("source", Name: EntityManager.GetComponent<MetaDataComponent>(source).EntityName), ("target", Name: EntityManager.GetComponent<MetaDataComponent>(target).EntityName)));
+                    source.PopupMessageCursor(Loc.GetString("stunned-component-disarm-success", ("target", Name: EntityManager.GetComponent<MetaDataComponent>(target).EntityName)));
                 }
             }
 
diff --git a/Content.Server/Suspicion/SuspicionRoleComponent.cs b/Content.Server/Suspicion/SuspicionRoleComponent.cs
index 925f08c794..df51ff8537 100644
--- a/Content.Server/Suspicion/SuspicionRoleComponent.cs
+++ b/Content.Server/Suspicion/SuspicionRoleComponent.cs
@@ -161,7 +161,7 @@ namespace Content.Server.Suspicion
                     continue;
                 }
 
-                allies.Add((role.Role!.Mind.CharacterName, role.Owner));
+                allies.Add((role.Role!.Mind.CharacterName, Uid: role.Owner));
             }
 
             return new SuspicionRoleComponentState(Role?.Name, Role?.Antagonist, allies.ToArray());
diff --git a/Content.Server/Toilet/ToiletComponent.cs b/Content.Server/Toilet/ToiletComponent.cs
index 1530acd599..b44f600799 100644
--- a/Content.Server/Toilet/ToiletComponent.cs
+++ b/Content.Server/Toilet/ToiletComponent.cs
@@ -40,7 +40,7 @@ namespace Content.Server.Toilet
 
         private const float PryLidTime = 1f;
 
-        private bool _isPrying;
+        private bool _isPrying = false;
 
         [DataField("pryingQuality", customTypeSerializer:typeof(PrototypeIdSerializer<ToolQualityPrototype>))]
         private string _pryingQuality = "Prying";
@@ -157,20 +157,20 @@ namespace Content.Server.Toilet
             if (_entMan.TryGetComponent<SharedBodyComponent?>(victim, out var body) &&
                 body.HasPartOfType(BodyPartType.Head))
             {
-                var othersMessage = Loc.GetString("toilet-component-suicide-head-message-others", ("victim", _entMan.GetComponent<MetaDataComponent>(victim).EntityName),("owner", _entMan.GetComponent<MetaDataComponent>(Owner).EntityName));
+                var othersMessage = Loc.GetString("toilet-component-suicide-head-message-others", ("victim",Name: _entMan.GetComponent<MetaDataComponent>(victim).EntityName),("owner", Name: _entMan.GetComponent<MetaDataComponent>(Owner).EntityName));
                 victim.PopupMessageOtherClients(othersMessage);
 
-                var selfMessage = Loc.GetString("toilet-component-suicide-head-message", ("owner", _entMan.GetComponent<MetaDataComponent>(Owner).EntityName));
+                var selfMessage = Loc.GetString("toilet-component-suicide-head-message", ("owner", Name: _entMan.GetComponent<MetaDataComponent>(Owner).EntityName));
                 victim.PopupMessage(selfMessage);
 
                 return SuicideKind.Asphyxiation;
             }
             else
             {
-                var othersMessage = Loc.GetString("toilet-component-suicide-message-others",("victim", _entMan.GetComponent<MetaDataComponent>(victim).EntityName),("owner", _entMan.GetComponent<MetaDataComponent>(Owner).EntityName));
+                var othersMessage = Loc.GetString("toilet-component-suicide-message-others",("victim", Name: _entMan.GetComponent<MetaDataComponent>(victim).EntityName),("owner", Name: _entMan.GetComponent<MetaDataComponent>(Owner).EntityName));
                 victim.PopupMessageOtherClients(othersMessage);
 
-                var selfMessage = Loc.GetString("toilet-component-suicide-message", ("owner", _entMan.GetComponent<MetaDataComponent>(Owner).EntityName));
+                var selfMessage = Loc.GetString("toilet-component-suicide-message", ("owner",Name: _entMan.GetComponent<MetaDataComponent>(Owner).EntityName));
                 victim.PopupMessage(selfMessage);
 
                 return SuicideKind.Blunt;
diff --git a/Content.Server/Weapon/Ranged/Barrels/Components/BoltActionBarrelComponent.cs b/Content.Server/Weapon/Ranged/Barrels/Components/BoltActionBarrelComponent.cs
index 6e2cebee3a..dc6012d76b 100644
--- a/Content.Server/Weapon/Ranged/Barrels/Components/BoltActionBarrelComponent.cs
+++ b/Content.Server/Weapon/Ranged/Barrels/Components/BoltActionBarrelComponent.cs
@@ -270,7 +270,7 @@ namespace Content.Server.Weapon.Ranged.Barrels.Components
             return false;
         }
 
-        bool IUse.UseEntity(UseEntityEventArgs eventArgs)
+        public bool UseEntity(UseEntityEventArgs eventArgs)
         {
             if (BoltOpen)
             {
@@ -284,7 +284,7 @@ namespace Content.Server.Weapon.Ranged.Barrels.Components
             return true;
         }
 
-        async Task<bool> IInteractUsing.InteractUsing(InteractUsingEventArgs eventArgs)
+        public async Task<bool> InteractUsing(InteractUsingEventArgs eventArgs)
         {
             return TryInsertBullet(eventArgs.User, eventArgs.Using);
         }
diff --git a/Content.Server/Weapon/Ranged/Barrels/Components/PumpBarrelComponent.cs b/Content.Server/Weapon/Ranged/Barrels/Components/PumpBarrelComponent.cs
index ceb555cd1d..6b90cf9917 100644
--- a/Content.Server/Weapon/Ranged/Barrels/Components/PumpBarrelComponent.cs
+++ b/Content.Server/Weapon/Ranged/Barrels/Components/PumpBarrelComponent.cs
@@ -226,13 +226,13 @@ namespace Content.Server.Weapon.Ranged.Barrels.Components
             return false;
         }
 
-        bool IUse.UseEntity(UseEntityEventArgs eventArgs)
+        public bool UseEntity(UseEntityEventArgs eventArgs)
         {
             Cycle(true);
             return true;
         }
 
-        async Task<bool> IInteractUsing.InteractUsing(InteractUsingEventArgs eventArgs)
+        public async Task<bool> InteractUsing(InteractUsingEventArgs eventArgs)
         {
             return TryInsertBullet(eventArgs);
         }
diff --git a/Content.Server/Weapon/Ranged/Barrels/Components/RevolverBarrelComponent.cs b/Content.Server/Weapon/Ranged/Barrels/Components/RevolverBarrelComponent.cs
index 96e8c3768f..6966a64f88 100644
--- a/Content.Server/Weapon/Ranged/Barrels/Components/RevolverBarrelComponent.cs
+++ b/Content.Server/Weapon/Ranged/Barrels/Components/RevolverBarrelComponent.cs
@@ -252,7 +252,7 @@ namespace Content.Server.Weapon.Ranged.Barrels.Components
         /// <param name="eventArgs"></param>
         /// <returns></returns>
         /// <exception cref="NotImplementedException"></exception>
-        bool IUse.UseEntity(UseEntityEventArgs eventArgs)
+        public bool UseEntity(UseEntityEventArgs eventArgs)
         {
             EjectAllSlots();
             Dirty();
@@ -260,7 +260,7 @@ namespace Content.Server.Weapon.Ranged.Barrels.Components
             return true;
         }
 
-        async Task<bool> IInteractUsing.InteractUsing(InteractUsingEventArgs eventArgs)
+        public async Task<bool> InteractUsing(InteractUsingEventArgs eventArgs)
         {
             return TryInsertBullet(eventArgs.User, eventArgs.Using);
         }
diff --git a/Content.Server/Weapon/Ranged/Barrels/Components/ServerMagazineBarrelComponent.cs b/Content.Server/Weapon/Ranged/Barrels/Components/ServerMagazineBarrelComponent.cs
index fca9faee5f..7e0a30b51f 100644
--- a/Content.Server/Weapon/Ranged/Barrels/Components/ServerMagazineBarrelComponent.cs
+++ b/Content.Server/Weapon/Ranged/Barrels/Components/ServerMagazineBarrelComponent.cs
@@ -248,7 +248,7 @@ namespace Content.Server.Weapon.Ranged.Barrels.Components
             _appearanceComponent?.SetData(AmmoVisuals.AmmoMax, Capacity);
         }
 
-        bool IUse.UseEntity(UseEntityEventArgs eventArgs)
+        public bool UseEntity(UseEntityEventArgs eventArgs)
         {
             // Behavior:
             // If bolt open just close it
@@ -305,7 +305,7 @@ namespace Content.Server.Weapon.Ranged.Barrels.Components
 
             _chamberContainer.Insert(nextRound);
 
-            if (_autoEjectMag && magazine.Valid && _entities.GetComponent<RangedMagazineComponent>(magazine).ShotsLeft == 0)
+            if (_autoEjectMag && magazine != null && _entities.GetComponent<RangedMagazineComponent>(magazine).ShotsLeft == 0)
             {
                 SoundSystem.Play(Filter.Pvs(Owner), _soundAutoEject.GetSound(), Owner, AudioParams.Default.WithVolume(-2));
 
@@ -391,7 +391,7 @@ namespace Content.Server.Weapon.Ranged.Barrels.Components
             UpdateAppearance();
         }
 
-        async Task<bool> IInteractUsing.InteractUsing(InteractUsingEventArgs eventArgs)
+        public async Task<bool> InteractUsing(InteractUsingEventArgs eventArgs)
         {
             if (CanInsertMagazine(eventArgs.User, eventArgs.Using, quiet: false))
             {
diff --git a/Content.Shared/Body/Components/SharedBodyComponent.cs b/Content.Shared/Body/Components/SharedBodyComponent.cs
index df7d7a7b41..1cac1d8605 100644
--- a/Content.Shared/Body/Components/SharedBodyComponent.cs
+++ b/Content.Shared/Body/Components/SharedBodyComponent.cs
@@ -468,7 +468,7 @@ namespace Content.Shared.Body.Components
             var i = 0;
             foreach (var (part, slot) in SlotParts)
             {
-                parts[i] = (slot.Id, part.Owner);
+                parts[i] = (slot.Id, Owner: part.Owner);
                 i++;
             }
 
diff --git a/Content.Shared/Hands/Components/SharedHandsComponent.cs b/Content.Shared/Hands/Components/SharedHandsComponent.cs
index 82c2b6dc24..67028d1353 100644
--- a/Content.Shared/Hands/Components/SharedHandsComponent.cs
+++ b/Content.Shared/Hands/Components/SharedHandsComponent.cs
@@ -111,6 +111,9 @@ namespace Content.Shared.Hands.Components
             var hands = new List<HandVisualState>();
             foreach (var hand in Hands)
             {
+                if (hand.HeldEntity == null)
+                    continue;
+
                 if (!entMan.TryGetComponent(hand.HeldEntity, out SharedItemComponent? item) || item.RsiPath == null)
                     continue;
 
@@ -230,8 +233,8 @@ namespace Content.Shared.Hands.Components
 
         public bool TryGetActiveHeldEntity(out EntityUid heldEntity)
         {
-            heldEntity = GetActiveHand()?.HeldEntity ?? EntityUid.Invalid;
-            return !heldEntity.Valid;
+            heldEntity = GetActiveHand()?.HeldEntity ?? default;
+            return heldEntity != null;
         }
 
         public bool IsHolding(EntityUid entity)
@@ -412,7 +415,7 @@ namespace Content.Shared.Hands.Components
         /// </summary>
         private bool CanRemoveHeldEntityFromHand(Hand hand)
         {
-            if (!hand.HeldEntity.Valid)
+            if (hand.HeldEntity == null)
                 return false;
 
             var heldEntity = hand.HeldEntity;
@@ -443,7 +446,7 @@ namespace Content.Shared.Hands.Components
         /// </summary>
         private void RemoveHeldEntityFromHand(Hand hand)
         {
-            if (!hand.HeldEntity.Valid)
+            if (hand.HeldEntity == null)
                 return;
 
             var heldEntity = hand.HeldEntity;
@@ -534,7 +537,7 @@ namespace Content.Shared.Hands.Components
 
         private bool CanPutHeldEntityIntoContainer(Hand hand, IContainer targetContainer, bool checkActionBlocker)
         {
-            if (!hand.HeldEntity.Valid)
+            if (hand.HeldEntity == null)
                 return false;
 
             var heldEntity = hand.HeldEntity;
@@ -553,7 +556,7 @@ namespace Content.Shared.Hands.Components
         /// </summary>
         private void PutHeldEntityIntoContainer(Hand hand, IContainer targetContainer)
         {
-            if (!hand.HeldEntity.Valid)
+            if (hand.HeldEntity == null)
                 return;
 
             var heldEntity = hand.HeldEntity;
diff --git a/Content.Shared/Interaction/SharedInteractionSystem.cs b/Content.Shared/Interaction/SharedInteractionSystem.cs
index 7a83056741..3b64493d67 100644
--- a/Content.Shared/Interaction/SharedInteractionSystem.cs
+++ b/Content.Shared/Interaction/SharedInteractionSystem.cs
@@ -650,7 +650,7 @@ namespace Content.Shared.Interaction
         /// <param name="used"></param>
         public void TryUseInteraction(EntityUid user, EntityUid used, bool altInteract = false)
         {
-            if (user.Valid && used.Valid && _actionBlockerSystem.CanUse(user))
+            if (user != null && used != null && _actionBlockerSystem.CanUse(user))
             {
                 if (altInteract)
                     AltInteract(user, used);
@@ -820,7 +820,7 @@ namespace Content.Shared.Interaction
         /// </summary>
         public bool TryDroppedInteraction(EntityUid user, EntityUid item)
         {
-            if (!user.Valid || !item.Valid || !_actionBlockerSystem.CanDrop(user)) return false;
+            if (user == null || item == null || !_actionBlockerSystem.CanDrop(user)) return false;
 
             DroppedInteraction(user, item);
             return true;
diff --git a/Content.Shared/Standing/StandingStateSystem.cs b/Content.Shared/Standing/StandingStateSystem.cs
index 89bb1d7da2..4e551dedae 100644
--- a/Content.Shared/Standing/StandingStateSystem.cs
+++ b/Content.Shared/Standing/StandingStateSystem.cs
@@ -12,6 +12,8 @@ namespace Content.Shared.Standing
 {
     public sealed class StandingStateSystem : EntitySystem
     {
+        [Dependency] private readonly SharedHandsSystem _sharedHandsSystem = default!;
+
         public bool IsDown(EntityUid uid, StandingStateComponent? standingState = null)
         {
             if (!Resolve(uid, ref standingState, false))