The Simpsons Season 21 Episode 2 “Bart Gets a Z” (443)
The ruckus Springfield pupils, Bart leading them, take revenge on Mrs. Krabappel for confiscating their cell phones. Bart laces the poor teacher’s coffee with alcohol, bringing Mrs. Krabappel into a drunken fit around the school.

She gets fired, and is replaced by a younger and cooler teacher, Zachary Vaughn. Despite the “positive” turnout of events, Bart is stricken by guilt for what he has done to his former teacher and thinks of confessing to Principal Skinner.



