Once in my last year of high school, my Lit class had a substitute, and we decided it would be hilarious (cause ya gotta mess with a sub), when she left the room and was talking with someone right outside the door, if we all climbed out the window and she came back in to an empty class. One person wasn’t up for it, but we thought it would be funnier if that kid stayed there and did his work all nonchalant. So out the window we went…only to wait around for ten minutes, get bored, and climb back in. It was only when we were back in our seats that the sub chose to come back in. She outfoxed us without even knowing it.