In kindergarden, when one kid was about to hit another, the other kid would say "if you hit me, you have to pay the health insurance!". None of us had any idea what that could mean, and I have no idea where that idea came from, but it worked, because to us, that sounded bad.
Some of my class mates thought that wrestling was real, and a few of them thought there was a place in the US where it was legally possible to kill a man during a wrestling match. They were quite offended when I told them how ridiculous that notion sounded to me.