We got a used piano a few months ago. After we cleaned it and put it where we wanted it, I played a few short songs (poorly). Throughout the rest of the day, we'd occasionally hear one of the kids hitting a few keys and laughing.
Several hours later, Jake came up to me with some bad news:
Jake: Daddy, I think the piano's broken.
Me, alarmed: Why? What happened?
Jake, upset: I pressed all the keys, but it didn't make the right music come out.