Aside from the entirety of “Time and Punishment” …
The April Fool’s episode where Bart takes Homers last can of beer down to the hardware store for a spin on the paint shaker. The way the can trembles all by itself as Bart gingerly places it on the refrigerator shelf is great. Best of all is when Bart attempts to shout “April Fo …” only to be cut off as the can detonates upon being opened.
How the foam lifts off the roof and geysers out of the chimney is priceless. So is the exterior dialogue:
Eddie: That sounded like an explosion at the old Simpson place.
Wiggum: Forget it. That’s two blocks away.
Eddie: Looks like there’s beer coming out of the chimney!
Wiggum: [gets out of the car] I am proceeding on foot. Call in a Code 8.
Eddie: [into radio] We need pretzels. Repeat, pretzels.
I can laugh myself into tears just thinking about it again. What are your favorite scenes?