About 90 fifth-graders piled into the airliner I was flying, on their way home from a school trip. Once we were in the air, and the crew began serving drinks, I could hear them pleading with the children to settle down and let the other passengers get some sleep. No amount of reasoning seemed to help, until I thought of the solution that actually worked.
I picked up the PA mike in the cockpit and announced, "Children, this is the captain speaking. Don't make me stop this airplane and come back there!"