if you have ever seen a pit in action you would teach them to not use there mouths on peps. but that is your call you have the dog. As for my dogs they use there mouths feet and bodys on peps. Maybe I'm a bad master I spoil them rotten. any way my big guy Tag would never use his mouth he had no controle and knew it. his sister on the other hand has a soft mouth and we can play all day long she will pull me by the hand or what ever and never hurt me. Don't get me wrong my hands were bruised after a good play but teeth are hard. the little guy only uses his teeth when I grab his tail. It's a play thing not hurting him at all. hehe