Sounds like your puppy owns you! try watching the dog whisperer and correct that dominant behaviour before anything happens! Long walks with you in charge, exercise, discipline, affection! Good luck! ... View related article.
Maybe he's just scared. I'd try just leaving your hand in the cage for a few minuets each day and eventually start to touch him. Don't pick him up right away. Once he's used to you and your "smell" then maybe he'll stop biting. I had a hamster once who bit me all the time, and this really helped! Good luck! ... View related article.