Rigadin domestique.

Charles Prince is an inept butler, so he is fired. He goes and gets a job at a restaurant, where he discovers his former employer in a tryst with a young woman who's clearly prepared to be no better than she is, and snatches a love letter from the boss to the girl. He uses this to reinsert himself into his former home, where he drinks the master's wine, smokes the master's cigars, and insults the master's cook.