If you can 'forget' to tell your pitbull who to bite, you shouldn't have a dog.
The answer is no one. Even if a pitbull bit a terrorist about to blow up an elementary school full of students, someone would demand that such a dangerous animal be put down.
The answer is no one. Even if a pitbull bit a terrorist about to blow up an elementary school full of students, someone would demand that such a dangerous animal be put down.