O Bart, Where Art Thou?

O Bart, Where Art Thou? is a story that is featured in.

Plot
Bart injures his head while riding his scooter off the roof of his house and is forced to go to the hospital. As Dr. Hibbert shaves Bart's head bald to apply the stitches, he notices that Bart has a birthmark shaped like Ned Flanders under his hair. Hibbert explains to the Simpsons that the "Flanders' birthmark" is shared by Ned and his son Todd. Rod however, does not have said birthmark. Homer rashly comes to the conclusion that Bart and Rod were switched at birth and storms off to Ned's house to trade sons.

Back home, Marge tells Homer that they should get a DNA test first, but Homer stops her, saying that they're getting the better end of this deal. Ned compares his birthmark to Bart's showing that they are a match. Lisa then asks where Todd's birthmark is, and Ned replies that it's on his "tushie". After Bart and Homer have a good laugh, both boys reluctantly trade homes, but find it difficult to fit into their new lifestyles. While eating dinner, Rod attempts to pray at the table, but is strangled by Homer when Rod won't tell him what he's praying for. Lisa then takes Rod away to watch TV, but this only bores Rod. He suggests that they could do some home work, to which Lisa wholeheartedly agrees, stating that if they start now they could finish a weeks worth of homework in one night.

Bart also has problems while staying at Ned's and finds that he actually misses being strangled by Homer. He is irritated by all of Ned's house rules, such as not being able to stay up past 7:00 p.m. Bart becomes disappointed because this means he can't watch Krusty the Clown. Ned compromises and says that he and Todd can watch 15 minutes of Scared Straight to Heaven. Bart declines the offer, so Ned tells him that he might as well go for his bath and then get into bed. Bart reluctantly does as he's told, but only bothers to wash his face. Ned asks Bart if he had scrubbed behind his ears and, when Bart says no, proceeds to do it himself. While wetting and soaping up Bart's head, Ned discovers that Bart's supposed "birthmark" was in fact merely a wad of dried up bubble gum that had gotten stuck on Bart's head.

With the issue resolved, each child returns to their respective families. The next night, Bart comments that he should get a tattoo of Homer on his rump so that Homer will never be able to get rid of him. Homer then strangles Bart, who remarks that it's great to be home again.