This is what you can do via breeding...

How a century of dog breeding ruined these beautiful animals


Some dogs have been bred to have a propensity of violence.
But that still doesn't excuse idiot owners.

The thing is, while pitbulls were bred for aggression back in the height of dog fighting days, we are talking 20-50 years ago that it has been where dog aggression has started to be bred out of them, and since the beginning pits with human aggression were taken out of the gene pool. Aggression still will exist in some dogs of any breed, but its not like it was from the origin of the breed where it is a desirable trait anymore. It will take some time to escape from the gene pool, and you will never get rid of the chance of aggression in any breed, but people need to understand how quickly they damaged these dogs and how quickly they can fix the problem. Punishment to the dumb fucking asshole that buys two dogs on kijiji to breed them and calls themselves a breeder would be a good start.