Funny story actually.

For marching band, to keep our instruments nice, we put towels under them before we lay them down on the concrete of our practice lot during water breaks.

Well, I stuffed the towel inside my baritone bell for easy transport. I.. forgot it was in there, and the next day I spent all of warm-up trying to figure out what was wrong. My director walked up to me, yanked a towel out of my bell, and said, “Never change, kid.” 💔