Learn why your rabbit is making the noises he is. Grinding teeth is for a rabbit what purring is to a cat.
If your bunny seems to regard you with mistrust and suspicion, you should know that this is fairly common rabbit behavior. Learn how to understand and become friends with your bunny.
Yes, bunnies are incredibly cute, playful, and fun little individuals, but they also have some tendencies that may be somewhat surprising to the uninitiated.