 In the episode "Homer Goes to College", Marge sees that Homer has made a  bookcase out of cinderblocks and wood. She tells him "Homer, we have a  perfectly good bookcase", to which he explains "Yeah, but this is what  theyre doing on campus. Besides, it isnt costing us: I swiped the  cinderblocks from a construction site". Cut to the construction site where a  worker informs the foreman that four cinderblocks are missing and the foreman  says "Therell be no hospital, then. Ill tell the children." In the  syndicated reruns, the scene at the construction site is deleted and the joke  is left without a punchline.