My son played saxophone in jazz band in middle school and forgot his mouthpiece at a jazz festival. Trouble was, he was really good. The director made him borrow another kid's mouthpiece to play.

Aside from how incredibly gross that was, I often wonder how it made the other kid feel.

"You forgot your mouthpiece? Well, we can't have you not play. Borrow a mouthpiece from that kid. He sucks anyway."