This girl is fast enough to chase down a rabbit or squirrel. A rat wouldn't have a chance.
Terriers are fearless. Some times too brave for their own good. We had a Cairn who mixed it up with a trespassing German Shepherd and he was lucky to survive. He had to wear one of those plastic (`Elizabethan’) collars and bumped into things for weeks.
Keep in mind, “pit bills” (sui generis) are terriers bred with old English bulldogs.
When bull baiting was banned, English `sports’ started ratting contests, legal, and even dog fights, illegal, which could be done in-doors. Believe they ban pit bulls now.