Happy Days - Fonzie, the Substitute

Seizoen: 9 - Aflevering: 7 / 197 - Eerst uitgezonden: 17 november 1981 - Episode ID: 115132

Fonzie substitutes for Roger in his hygiene class, and, as a prank, the students hide the lesson plan and tell Fonzie they're learning about sex. Roger is later informed that he will be fired as a teacher as a result of Fonzie's teachings.