That's a good quote sammiz
I have known many sweet and gentle "bully breeds" in my life time and I've seen dogs that represent the other dangerous extreme as well. I have to agree that is has nothing to do with temperament. The sweetest dog in the world could become a killer in the blink of an eye, just because their strong bodies and jaws have that capability.
Personally I feel bad for these misunderstood dogs and blame the owners for negligence & not being responsible enough to own certain breeds.