"Pranks and Greens" is the sixth episode of the twenty-first season of the American animated television series The Simpsons.
In this episode, Bart tracks down an immature, college-aged man named Andy Hamilton who was once hailed Springfield Elementary's best prankster and encourages him to do something with his life.
Groundskeeper Willie eventually tells Bart that he was once the school swim instructor, and that Skinner was once fun-loving and laid-back until an incident dubbed "Night of the Wigglers".
Despite Andy's success, Lisa still thinks that he is a loser, believing that writing for a comedy show is no better than the life of a prankster.
Meanwhile, Marge is harshly criticized by other Springfield mothers for serving unhealthy snacks at their "Midday Mommies" meeting.
"[1] In August 2009, Fox announced that Jonah Hill would guest star as Andy, the best prankster ever at Springfield Elementary.
IGN's Robert Canning gave it a 6.9/10 saying that "the episode had a good start, but veered into a less than impressive direction and Marge's storyline, while cute in parts, was really just filler more than anything else".