My point is, they pull their own trigger without provocation or reason.
I understand your point, it's just that one of the "arguments" that the pit bull loving hand wringers use against banning the breed is that banning the breed is like banning a variety of gun. Just ain't so for the very reason you mentioned. Guns don't attack all on their own. And I don't buy their crap that "it isn't the dog it's the owner." If dogs can be bred for different appearance, they can also be bred for different levels of aggressivness.