Actually, it's Randall Munroe's: http://blag.xkcd.com/2008/01/14/robot9000-and-xkcd-signal-attacking-noise-in-chat/ http://blag.xkcd.com/2008/01/14/robot9000-an

Actually, it's Randall Munroe's: http://blag.xkcd.com/2008/01/14/robot9000-and-xkcd-signal-attacking-noise-in-chat/ http://blag.xkcd.com/2008/01/14/robot9000-and-xkcd-signal-at...