For all dog breeds; but especially for American Pitbull Terriers, American Bullies and the American Staffordshire Terrier, also known as the Amstaff - which is pictued. (Breed origins: America) | Dog blog! | Source
I came across this on youtube and this guy gives a nice on point rant about exotic bullies, the cruelty behind their breeding and numerous health issues and even explains his first hand experience as to how he saw the exotic movement come forth by people originally entering cropped french bulldogs and english bulldogs into American Bully shows and misrepping their dogs.
He does talk about some short experiences watching exotics die at shows in 50 degree weather, suffocation, and die from mating.