The only detention I ever had was from me being late to school too many times back when I was homeless and living with my entire family in a single bedroom. Had to spend two hours on Saturday sitting in the Study Hall room, and while we weren't allowed to sleep, somehow I managed to sneak by the teacher and slept through most of it. I had no clue I dozed off either until we were given a momentary break to get a drink or use the bathroom.