Some time ago I found a rather amusing site by another member of the AFF forum, containing illustrated, more than slightly "interesting" rants by a paranoid schizophrenic, which the madman in question had written and sent to random locations across the USA (including one wonderful letter to the supreme court):
http://bentoandstarchky.com/dec/As the site recommends, make sure to listen to them while reading. I have written many weird things, but here I have by an order of magnitude been beaten by a madman through his unintentional efforts. While I don't find them as hilarious as the site's creator does, it's still rather amusing, and quite fascinating.