Igmuska i have a question.Have you any idea what the influence is when you take a pup home with 4 weeks.Take it away by their mom.I saw with my chi litter that she corrected them firm in the past 2 weeks (6/8) and learned them to behave. I took my first gsd home with 4 weeks and he was always humen agressive ,had nothing to do with dogs unless i told him that he was allwed to fight.he never fought for dominance only for me. He started biting people at the age of 7 weeks.No playing just agression.Its never went away.I trained a lot.Tried to socialise him as far was possible. It never went away but i could live with him.For me wonderful dog. Now agfter the dogs i owned including co pups i know for sure that he wasnt right at all. Do you think that picking a pup away from mom too soon can reflected this way?