diff --git a/data/cat.py b/data/cat.py
index 0dfb7f3..b83494a 100644
--- a/data/cat.py
+++ b/data/cat.py
@@ -1,9 +1,10 @@
 class Cat:
-    def __init__(self, name, traits, money=25, inventory={}):
+    def __init__(self, name, traits, money=25, inventory=None):
         self.name = name
         self.traits = traits
         self.money = money
         self.inventory = inventory
+        self.inventory = inventory if inventory is not None else {}
 
     def to_dict(self):
         return vars(self)
diff --git a/systems/world.py b/systems/world.py
index d03b7fa..001aba4 100644
--- a/systems/world.py
+++ b/systems/world.py
@@ -183,8 +183,9 @@ def house(cat: Cat):
         ):
             case "Check on your cat":
                 print(
-                    f"{cat.name} - a {cat.traits["size"]} {cat.traits["color"]} with {cat.traits["eyes"]} eyes"
+                    f"{cat.name} - a {cat.traits["size"]} {cat.traits["color"]} with {cat.traits["eyes"]} eyes."
                 )
+                print(f"You have ${cat.money}.")
             case "Pet your cat":
                 pet(cat)
             case "Feed your cat":