Plot: It's traditional to fight on your first anniversary (even if Hallmark doesn't have a card for it): Dharma and Greg stage an argument to escape their parents' planned celebration, but in concocting the excuse Greg says Dharma was being ""flighty,"" and the gloves come off. While they drive out of the city, Dharma retaliates by calling Greg a ""stick in the mud,"" and soon their car is stuck in the mud when he tries to demonstrate how impetuous he can be