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. (Not very.) They hike to a diner, but find it closed because of a death in the owner's family; just as Greg breaks a pane in the door in order to use the phone, a highway patrolman happens by and the young couple get caught in a charade of being the replacement cook and waitress. There's a nice unspoken continuity with the first season episode in which Greg really did become a short order cook, and it's nice to see him sharing Dharma's role-playing game, even if unwillingly. But Dharma looks tense and unhappy even before Greg accidentally i (thetvdb.com)