Lol, yeah, making them honk their horn really keeps them from killing you.
Though I have made AI that honk their horn when driving a hog (like a retard) and approaching someone.
Problem is, in a Hog, they don't know which team they're on, which equals DEATH TO THEM ALL, apparently. I've had 2 rocket hogs loaded with Humans try to kill each other before one blew both of them up with a badly timed missile.