my pup is so well behaved, he doesn't play to rough and i find his biting to be so cute.. he never bites hard and is such a gentle player but he, like myself looooves wrestlin around. we spend a good 2 hours a day rough housing and he knows his limits, he never bites hard, the few times he has gotten a bit out of hand all i have to say is hey and he calms right down. he has been so good with his training. so long as biting is never an issue is there a reason to make him stop?