S15E10 Diatribe of a Mad Housewife
After he gets fired at the plant, Homer gets a job as a car salesman. There he comes across an old ambulance and decides to become an ambulance driver. Not hindered by any medical knowledge Homer starts his new job. Marge also found a new pastime: writing. She writes a book and manages to get it published. It's the talk of the town, not in the least because the book's not very flattering about Homer and suggests a love connection between Flanders and Marge.