Rowdy Choristers

The best way to stop a disruptive person in the choir - the jokster, the punmaster, the back-seat conductor - is to keep the choir singing. If it gets a bit out of hand, it's easy to make it stop: "Let's start from the top, here's your notes!" and then a cue. Once their singing, the interruption is over.

Not to say that volunteer choirs don't need a little levity. But I'm had times where some people just won't stop...