A song and music video set in a library. In less than four minutes they manage to cram in just about every librarian stereotype there is. I particularly like how in popular culture anytime someone shelves a book they do it without looking. I guess the video is balanced by the many examples of bad patron behavior.
As an added bonus, check out Shorpy.com for this hilarious dummy letter featured in an episode of Leave it to Beaver. Ah, the things we can do with modern technology.