Yeah they tend to be real good dogs. Is your guy a red nose or a mastiff? He's real handsome guy also. What's his name? My guy was the runt, my wife had to keep him, he turned into the pick. There was a couple weeks when he was months old he doubled his weight over a week period. The vet was shocked. So were we. Anyway Daisy is his great aunt or something. They are both really smart. Both really stubborn also lol