You know these scenes in the movies (maybe even outside the movies) where there's this guy (or girl) who thinks he (or she) is saying something really profound, but what he's (she's) saying is actually just a big pile of dung? Those scenes are really really funny. Why? I wonder..

Almost Famous

Russell Hammond (to this teenage hippie dude who's staring blankly at him) : You're real, man. Your friends are real. Your room is real. (Taps on the table) Real. (Touches the curtains) Real. (Flicks a switch on and off repeatedly) Real.
You're more important than all the silly machinery. The silly machinery.
In 11 years it's gonna be 1984, man. Think about that.

Kid : You want to see me feed a mouse to my snake?

Russell : Yes.