Adult Swim's 404 page always has a dark, sometimes surreal, shaggy-dog story that ends with a reference to the page being 404.[1]
The page seems to return the same story each time you access it (at least on the same day). I'm not sure when they change from one story to another. The author has posted some of the other stories on other sites.[2][3][4][5] I still vividly recall reading this one in particular (although this reproduction is missing the bolding of the text in the second to last paragraph).[6]