diff --git a/src/npc/Npc.cs b/src/npc/Npc.cs
index 68f0f640..31fecaca 100644
--- a/src/npc/Npc.cs
+++ b/src/npc/Npc.cs
@@ -17,6 +17,8 @@ public partial class Npc : Node3D
 
   private bool _isInDialogueZone = false;
 
+  private Node _dialogueBalloon;
+
   public void OnReady()
   {
     DialogueZone.BodyEntered += DialogueZone_BodyEntered;
@@ -26,6 +28,8 @@ public partial class Npc : Node3D
   private void DialogueZone_BodyExited(Node3D body)
   {
     _isInDialogueZone = false;
+    if (_dialogueBalloon != null)
+      _dialogueBalloon.QueueFree();
   }
 
   private void DialogueZone_BodyEntered(Node3D body)
@@ -36,6 +40,6 @@ public partial class Npc : Node3D
   public override void _UnhandledInput(InputEvent @event)
   {
     if (Input.IsActionJustPressed(GameInputs.Throw) && _isInDialogueZone)
-      DialogueManager.ShowDialogueBalloonScene(DialogueController.DialogueBalloon, DialogueOptions.First(), "introduction");
+      _dialogueBalloon = DialogueManager.ShowDialogueBalloonScene(DialogueController.DialogueBalloon, DialogueOptions.First(), "introduction");
   }
 }
diff --git a/src/npc/rat/NPC.tscn b/src/npc/rat/NPC.tscn
index f814eb01..f8b521f3 100644
--- a/src/npc/rat/NPC.tscn
+++ b/src/npc/rat/NPC.tscn
@@ -5,7 +5,7 @@
 [ext_resource type="Resource" uid="uid://cf7ycgdiihyh" path="res://src/npc/rat/ratdialogue.dialogue" id="2_uo38w"]
 
 [sub_resource type="CylinderShape3D" id="CylinderShape3D_wfhgc"]
-radius = 1.5
+radius = 2.5
 
 [node name="NPC" type="Node3D"]
 script = ExtResource("1_cpdf2")