Bart gets in trouble for setting off the steam pipes in the school. The punishment: time in a behavioral modification camp in Oregon. Unfortunately, Bart has been put on the "No Fly" list after unbuckling his seat belt before the plane to Atlanta could land, so Homer must sacrifice his Vegas trip (funded by Moe, who won a settlement from a company that makes the faulty rope he recently used in a suicide attempt) to take Bart to the camp. Meanwhile, Marge and Lisa clean house and hold a garage sale -- and Marge inadvertently becomes a drug dealer when everyone begins buying the family's expired medication.
* DontExplainTheJoke: Combined with LampshadeTheObscureReference.
-->'''Chief Wiggum:''' Save it, Ma Peddle.\\
'''Lou:''' Ma Peddle?\\
'''Chief Wiggum:''' It's a reference to Ma Kettle, a movie character from the 1940s.\\
'''Lou:''' Chief, if you have to explain it, it's not very good.
* DownerEnding and NoEnding: Marge is arrested for selling drugs and is being held in prison with $10,000 bail, while Homer took Bart to Vegas and is now in Nevada State Prison after getting into a fight with a pit boss while Bart ends up missing. Lisa and Maggie are the only ones left to fend for themselves and the episode ends with Lisa vowing to look for work in the morning. Fortunately, [[SnapBack everything is back to normal by the beginning of the next episode]].
* GhostInTheMachine: We go inside Homer's head to see that the harsh and militaristic Serious Homer has locked up drunk, crazy Fun Homer and murdered Intellectual Homer (which is one of many, many reasons why Homer is an idiot).
* OhCrap: When Marge tells someone on the other end of her door that she's out of drugs to sell, she has this reaction when she sees that Chief Wiggum is on the other side.
* OverlyLongGag: Ned singing all the colors in the theme to ''JosephAndTheAmazingTechnicolorDreamcoat''. To make it more excruciating, as he reaches the last color, he starts at the beginning again!
* SkywardScream: Homer does a skyward "D'oh!" when he realizes he has to sacrifice his trip to Las Vegas to drive Bart to a boys camp. His friends hear it from the other side of town and get the hint that Homer's not coming with them.