The little poop bit me this morning quiet hard and drew blood. Granted we were playing with a Frisbee and I took it from him to throw it again. I am hoping that he just mistook my hand for the toy. I would hate for him to bite when he doesn't get what he wants. He likes to wake my up by scratching at my face. He has left a few marks already. He likes to bite at my nose to and it does not feel pleasant. I'll have to work on that with him.