Do you have any pit bull dogs?
I've always wanted one. I heard that pit bull is the common name for that type of dog.
Yeah, it is. Pit bulls seem to be pretty common, in the shelter nearby anyway.
I know they get a bad reputation for being mean, which is why they are commonly used in underground dog fighting. 
Yeah, and they're known to be aggressive too. It's sad since they're pretty sweet dogs.
I know. Michael Vick, one of my favorite Atlanta Falcons players was in a huge dog fighting scandal. Do you remember that?
No I don't, but wow that does sound pretty intense!
Bad Newz Kennels dog fighting investigation
The Bad Newz Kennels dog fighting investigation began in April 2007 with a search of property in Surry County, Virginia, owned by Michael Vick, who was at the time quarterback for the Atlanta Falcons football team, and the subsequent discovery of evidence of a dog fighting ring. Over seventy dogs, mostly pit bull terriers, with some said to be showing signs of injuries, were seized, along with physical evidence during several searches of Vick's property by local, state and federal authorities.
Pit bull
Pit bull is the common name for a type of dog descended from bulldogs and terriers. The pit bull-type is particularly ambiguous, as it encompasses a range of pedigree breeds, informal types and appearances that cannot be reliably identified. Formal breeds often considered to be of the pit bull-type include the American Pit Bull Terrier, American Staffordshire Terrier, American Bully, and Staffordshire Bull Terrier. The American Bulldog is also sometimes included. Mixed-breed dogs which physically resemble these breeds often get labelled