catch dogs

I have had bulldogs off and on for many yrs I don't care how easy going the dog is I would not ever kennel them together but to each there own. A cd story friend of mine got a pit let him run loose with the bay dogs they bumped a cow not a bay but just enough barks to set this pit into catch mode. He catches the cow in perfect form hanging off a ear get the dog off stop the hunt get back to the truck and pow he shot the dog I said why you do that he said I can't have a dog catching cows I told him that was your fault not the dogs. Just be carefull bulldogs are powerfull dogs with hearts of a lion. I think a ab can be just as good from what I have heard there just no as gung-ho