Tip for the Day: Never kick a cow pie on a hot day.

Soryy, just couldn't resist. And, actually, my group always tries to fill requests, esp. Happy BD. Makes the audience feel like you are there for them, not you. We usually make an announcement to the effect of--We take requests. We don't garuntee to fill them, but we do take them. Most always they are old chestnuts that we all know, but even if not, one of us usually knows enough of it that the rest of the group can fake around and make it sound OK.