Silence Angel
http://www.deviantart.com/deviation/11454716/ <-----says it all.
Pitbulls actually have a lower rate of biting you then many other dogs.
It's just a bad reputation they have and the way their owners treat them.
Most people I see saying the pitbulls are getting a bad rap arent taking into account the hipocracy of the statement because they turn around and spout about how its all the owners. That is very untrue considering dogs were bred specifically for different purposes.
The Scotty has very tough and loose skin, mor suseptable to bites from a sharp toothed animal like a badger... but they werent initially like that. People bred them to specifications for hunting.
Pit Bulls are the same, whether you wanna believe it or not behavior can be bred and changed. Pit bulls were bred aggressive and used in fight for many years (they still are today but its illegal).