I was waiting for the typical “my dogs would never do that” statement.
Read any news article from a dog biting incident and it’s always the same thing, “he would never hurt anyone” (except that kid he just chewed up). Face it, some breeds are more prone to do this, and pit bulls are in that category.
You specify “a well trained pitbull”, but who really trains their dog perfect? And you can place the blame on anyone you want, but the fact is the dog bit someone. It doesn’t matter who you blame.