We just got our new puppy 4 weeks ago, he is now 12 weeks . My question is will he stop barking and growling at us when he is playing? My husband wrestles with him and now you pick him up to cuddle and all he does is bite, then jumps back and forth and growls .... Will he grow out of this or do we have potential problems. This is the first boxer we have owned and he is different than the mutts we are use to having around.... A total different breed of pup.. Please help, we are ready to tear his teeth out..lol... :?