I liked the Malcolm in the Middle episode where they go to burning man. It captured a whole lot of stupidity perfectly.
#86 Malcolm in the middle burning man clip
http://www.ifc.com/shows/malcolm-in-the-middle/video-extras/season-07/episode-01/malcolm-in-the-middle-burning-man
Use IE. Firefox did not let me see the video. A couple more funny ones after this scene.