Really dont know why we need any of the fighting breeds, be it mastifs or pitt bulls, of course you get the owners who can point to thier pit bull playing with thier kids saying " oh look at rex, he wouldnt hurt a fly", its all fun until they snap in the head, and chasing pigs? use a bluey if a want but many properties wont let dogs on as the last many owners see of thier dog is when the let it loose to chase a pig, then they become sheep killers.