What is he trying to prove? How loyal he is to its current master, what about the one who picked him from the bins when he was a Mongrel, molded him to who he isThe dog that turned against its former owner.
When your dog barks at you somebody else is feeding it, applies.What is he trying to prove? How loyal he is to its current master, what about the one who picked him from the bins when he was a Mongrel, molded him to who he is