Air vents are for air

Thanks to continuous bombardment in television and movies, the idea of characters shimmying through air ducts has become not just a cliché, but almost a given. The moment a hero finds himself stuck someplace, we expect his eyes to drift north to that spot just below the ceiling, where an oversized grate is beckoning.

I thought the same thing when I saw the episode of Lost referred to. But screenwriter John August, whose credits include Go, Big Fish, Charlie and the Chocolate Factory, and some others I'd rather not mention, makes the point even better in this funny, well-written post.