Yeah...mine used to be a big time chewer...fingers were his favorite, toes his second fav. He is now almost 6 months, and I just recently realized, "oh, Kobi doesn't chew on fingers or toes anymore" So I guess it happened naturally with him. I did try to distract him and say no, etc, but nothing really worked until he decided not to do it anymore. Good luck with your puppy, and post some pics for us, pleaseeeeeeeeeeeeeeeeeee