YMMV / The Simpsons S 21 E 22 The Bob Next Door

• Nightmare Fuel: The entirety of the scene where Sideshow Bob switches faces with Walt, which is shown on-screen and in detail. Even worse is when Bob has to do the same thing on himself. He attempts to use alcohol to make it less painful, but he still screams and winces in pain. Doubles as Nausea Fuel.
• They Wasted a Perfectly Good Character: Walt. Freaking. Warren. This man first started out as a low-level criminal, and was scheduled for early release after Mayor Quimby released minor offenders to save money, but Bob gets to go instead thanks to his latest Evil Plan to kill Bart. For the rest of the episode, Walt does everything in his power to stop Bob and save Bart, actually showing off some pretty smart feats in the process. He forms a perfect plan to escape from prison, and doesn't trust a certain waitress when she "tries to throw him and the rest of the Simpsons off the scent after falling in love with Walt's face", and would much rather continue on the proper route to save Bart. Most people probably wouldn't go that far to save one boy that they've never even heard of, but knowing that Walt would shows a true hero. A true hero that never gets the thanks or proper goodbye he deserves. The Simpsons never thank him for his help in stopping Bob, and Walt himself just disappears from the rest of the story, despite that the house next to the Simpsons' is legally in Walt's name since Bob purchased it with his identity.
  • Further, the episode ends with Flanders' cousin Ted moving in next door - with his two daughters Bonnie and Connie. Any stories about the Simpsons dealing with this (Homer dealing with two Flanders, Lisa having new friends to play with, Bart getting one or both of them as love interests, etc.) are immediately thrown away as the credits roll.
• Unintentional Period Piece: Bob is baffled when he manages to spoil Harry Potter and the Half-Blood Prince for Bart because "it's a four-year-old book!" ("I'm a slow reader!")