Make the explosions throw the container/item they originated from (#32428)

Extra fun if it's something that can trigger multiple times

Content.Server/Explosion/EntitySystems/ExplosionSystem.Processing.cs

@@ -487,9 +487,12 @@ public sealed partial class ExplosionSystem : SharedExplosionSystem
             && physics.BodyType == BodyType.Dynamic)
         {
             var pos = _transformSystem.GetWorldPosition(xform);
+            var dir = pos - epicenter.Position;
+            if (dir.IsLengthZero())
+                dir = _robustRandom.NextVector2().Normalized();
             _throwingSystem.TryThrow(
                 uid,
-                 pos - epicenter.Position,
+                dir,
                 physics,
                 xform,
                 _projectileQuery,