Different people run through during the meeting or campfire with some containers (cups, buckets, cans, etc.). Eventually, the MC stops one of them and asks what's going on, to which the reply is, "your tent (car, house, whatever) is on fire". We add a great deal to it when we do it depending on the location setting, etc. The water carriers ham it up by making it look like a real effort or something very serious. The MC comments to the audience each time one runs through, including things like requesting a cup of coffee the next time someone runs through. Sometimes we have people "offstage" cheering the runner through. And sometimes we change the "punch line". Like MC: where's the fire? runner: there's no fire, so & so is thirsty, at which time someone walks across with a cup and wiping their mouth saying ahhhhhhh. I think you can get the idea from there.