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Bart is outraged to find out that a former student, Andy Hamilton, is the best prankster Springfield Elementary has seen, and he decides to hunt down Andy and talk to him about his pranks. However, Andy is a 19-year-old still in his pranking days, and Bart sees a negative side of being a prankster, and therefore tries to change Andy’s future. Meanwhile, Marge struggles to keep up with the other moms at her social group, but when the others start telling her that everything she does in her daily life is wrong, she feels like an outsider.
Couch Gag: Instead of the couch, The Simpsons (dressed as Victorian-era Christmas carolers) appear next to a Christmas tree and sing a parody of "The 12 Days of Christmas," featuring twelve Grampas grumbling (as they stand in a customer return line), eleven Barneys belching (as they lie drunk in the snow), ten Lennys leaping (over a fence), nine Carls dancing (in a ballroom), eight Moes a-milking, seven Selmas smoking, six Flanders praying, five golden Frinks (Professor Frink's heads are on five gold coins), four crawling nerds (Database, Wendell, Martin, and Milhouse crawling from Nelson Muntz), three-eyed fish (Blinky from "Two Cars in Every Garage and Three Eyes on Every Fish"), two special Ralphs, and (as the Simpsons walk to the couch), a Maggie in a Snuggly.
Bart: Dad! Lisa's making me see things from both sides again!
Homer: Lisa, I warned you about that!
Lisa: Shouldn't Bart have all the information he needs to make an informed decision?
Homer: Now you're doing it to me, aww...
Bart: Willie, I know you witnessed the most awesome prank since creation.
Willie: I'll nay speak to you of those dark times, Bart Simpson.
Bart: But if there was a more awesome dude than I, I need to know who he was, what he did and how many days detention he got.
Marge: From now on our family is eating healthy food that looks bad on the shelf and good in our colon.