ninja 2 electric boogaloo (#15534)

Co-authored-by: deltanedas <@deltanedas:kde.org>

Content.Server/Explosion/Components/AutomatedTimerComponent.cs

@@ -0,0 +1,9 @@
+namespace Content.Server.Explosion.Components;
+
+/// <summary>
+///     Disallows starting the timer by hand, must be stuck or triggered by a system.
+/// </summary>
+[RegisterComponent]
+public sealed partial class AutomatedTimerComponent : Component
+{
+}

Content.Server/Explosion/EntitySystems/TriggerSystem.OnUse.cs

@@ -140,7 +140,7 @@ public sealed partial class TriggerSystem
 
     private void OnTimerUse(EntityUid uid, OnUseTimerTriggerComponent component, UseInHandEvent args)
     {
-        if (args.Handled)
+        if (args.Handled || HasComp<AutomatedTimerComponent>(uid))
             return;
 
         HandleTimerTrigger(