Hello, My puppy is 14 weeks. He has started nipping nonstop. If anyone reaches down to touch him he tries to nip, if I try to pet him, even when im sitting down he tries to nip at my feet. I understand he is teething but how do I correct this behavior. I don't want him to get big teeth and nip and it hurts. Plus these little teeth he has now are even sharp and catch me at times when we are play wrestling so they hurt too. He has plenty of chew toys, ropes, stuffed animals and balls but he prefers to chew on everything else and nip at everybody.