Aggression in Great Pyr Shelter dog
I adopted a Great Pyr mix from the shelter. With me, he is extremely loving, gentle and affectionate. A delight to work with, intelligent, wants to please. But since starting to take him out in public, He has growled and nipped at strangers and has growled and snapped at other dogs at the dog park. We were asked to leave.
I have never had an aggressive dog before. Can this be resolved or will I always have to be on my guard that he does not hurt anyone or any animal?
He is 18 months old. I had hoped to train him to be a therapy service dog to visit retirement homes and children in cancer hospitals. My impression of him was of a gentle giant, until these mishaps occurred in public.