Springfield Elementary signs a deal with a snack company to install vending machines in the schoolsówith Bart taking advantage of the situation to the point that he becomes obese and suffers a heart attack.

!! Tropes:

* ShoutOut: When the head of the fat camp takes Bart home to show the youth hostel it became, Bart asks if the guests can see them and the head says that they obviously can since he's not [[Literature/AChristmasCarol the Ghost of Christmas Past]].
* TemporaryBulkChange: Bart becomes obese after eating too many snacks.