Angry Cat

A large red cat that is constantly angry, it hisses and bites. Allowing it to bite you actually heals you for 1d12. However, you must roll a d20 for pain, this has no actual effect on you, but you're getting bit by an angry cat, what did you expect?

When the item is used the first time, the cat becomes a lighter shade of red.
When the item is used the second time, the cat becomes orange, and less angry.
When the item is used for the third time, the cat becomes yellow and calm. It walks away and you lose the item.