Lol, that's called tough-love. Have a few similar memories when my mother would get fed-up with my brother and me beating up on each other, she'd slam on the brakes and give us a couple whacks and drive on.I have some fond distant memories of my mom getting mad at my brother and I for standing up on the seat, she would yell at us to sit down a few times, and when that failed she would slam on the brakes and we would crash into the dash of that 59 Plymouth. "Now sit down!"
Boy times have changed!