The entire dinner party sequence, early in the film.
"I know you! You're that guy from those obnoxious commercials! You're 'Tall & Fat'!" "Oh, yeah? Well, you're short and ugly. Gimme back that pen!"
The 'Tall & Fat' commercial shown at the beginning, mercilessly mocking the entire concept of body image. With Thornton closing "If you wanna look thin, you hang around fat people!"
Thornton (turning off the ad): So whadda ya think, Lou? Lou: You could lose a few pounds. Thornton (shaking his head): I gotta hire bigger actors...
The One-Scene Wonder moment of Sam Kinison going nuclear as a whacked-out history professor, forcing Rodney to get as berserk as he is just to get out of the room alive.
Thornton: Good teacher. He really seems to care. About what I have no idea.
Everybody gets at least one. Unlike many modern comedians, Dangerfield was more than willing to let other people be funny in his movies
Thornton hires Kurt Vonnegut to write his paper on Vonnegut... and the paper gets an F. Also notable for an Offscreen Moment of Funny: "Fuck me? Well, fuck you!" That's right, Kurt Vonnegut dropped an F-bomb on Thornton over the phone, and it's a shame the audience never gets to hear it.