Got some time to kill? Maybe you want to waste the last half hour at work (or the whole day at work, whatever). Well, the Cleverbot site is a surefire way to occupy your time, all by talk to a sarcastic robot.
It is actually really interesting, as the Cleverbot site is complete AI (artificial intelligence), and learns from the people who use it. So you might get a nice response, or you might get an angry robot telling you where to go. Take your chances, but it is super cool no matter what.