Aha ok thanks..I see that methods from one to another are pretty different, my breeder is also qualified trainer and her approach is a bit different.. Well i cant walk away if i talk about biting on my backyard because he would probably go on something else and forget bout me for some time(no effect?)..As i say i try to avoid physical corrections.. Last times when he goes on unappropriate items or cats food i just turn his head away and say no so i redirect attention..and it works..just i feel about alpha roll is needed when i cant do better to let him know NOW as puppy who is on top..Its ok then after 5sec he is calm, but sometimes could be half a minute or so needed..And i dont do it just for normal biting, but hard, snarling biting..but as i said im avoiding such approches as i can.. Feel free to correct me
