One member of our rascally group of oddballs inherits (or has had a lifelong dream of running) a certain type of business -- something our rascally group is completely inappropriate doing. Maybe it's a biker gang that suddenly has to serve as the fire department, or the strippers run a gas station, or a group of teenagers try to run a ship, laundromat, or house-painting company. Needless to say, Hilarity Ensues. One common variation has the villains taking over the business in order to ambush the heroes or evade capture. The key is that they do so poorly, and usually for laughs.