"My Fair Laddy" is the twelfth episode of the seventeenth season of the American animated television series The Simpsons. It first aired on the Fox network in the United States on February 26, 2006. This is the first episode that centers on Groundskeeper Willie. The title and plot are based on the Broadway musical and film My Fair Lady. Plot When Mrs. Pummelhorst (the school gym teacher) announces that she will be leaving to undergo gender reassignment surgery and will come back as the shop teacher "Mr. Pummelhorst," Coach Krupt, a substitute, takes her place. Every gym class, he has the students play a game called "Bombardment," which consists of him throwing dodgeballs at the students. When Bart gets sick of the constant bullying, he fills a ball full of water and sticks it in the freezer overnight. The next day, he tries to throw the frozen ball at Coach Krupt, who ducks; the ball crashes through the window and destroys Willie's shack. When Marge picks up Bart from school and sees Willie is homeless, she offers to let him stay at their house, and he eventually accepts. When there, Lisa has Willie realize that his life could be much better, and she decides to turn him into a proper gentleman. Bart, however, does not believe that she can do it, but Lisa bets that she can in time for the school science fair. Meanwhile, Homer comes home with his last pair of blue pants ripped and torn after his seat breaks at the go-cart track. As he searches through town for a new pair, he finds no store that sells his favorite type of pants. When he goes to the factory that sells them, the manager tells him that they do not make blue pants anymore due to poor sales thanks to a disastrous Super Bowl ad. Homer tells him that he will get more customers. He does this by writing "Buy blue pants" on the back of his head. Homer's advertising campaign pays off and soon everyone is wearing blue pants. However, Marge is annoyed when Homer begins putting other advertisements all over his body. Lisa struggles to teach Willie how to act sophisticated. On the day before the science fair, he is still his same old self, but when he sees how disappointed Lisa is, he suddenly surprises both Bart and Lisa by correctly (and with a