Families would take a car trip. Once upon a time, there were no electronics available to keep kids occupied. We literally had nothing to do in the car except sit still for hours. Kids being kids would get antsy, and frequently would start teasing, fighting, roughhousing, pinching, poking, etc. The driver, usually Dad, would yell at the kids to stop. “Don’t make me stop this car,” and other similar warnings. This panel uses that common (at the time) setting but with the absurd twist of an actual torture device.