Imagine you're working at a school and one of the kids is starting to act up. What do you do?

Traditionally, the answer would be to give the unruly kid detention or suspension.

But in my memory, detention tended to involve staring at walls, bored out of my mind, trying to either surreptitiously talk to the kids around me without getting caught or trying to read a book. If it was designed to make me think about my actions, it didn't really work. It just made everything feel stupid and unfair.