Stop us if you’ve heard this one before: A group of cowboys are sitting around a campfire. They’re outlaws and killers and varmints, the lot of them. Tomorrow, they plan on riding through a small frontier town, and razing this bastion of civilization to the ground. Tonight, they’re feasting on a typical cowpoke dinner of black coffee and baked beans. One of these dingy gunslingers lets out a belch. Then the guy sitting across from him… well, he farts. Loudly. So does another cowpoke. That one’s