This idea stinks...

Out of all the business ideas I've seen, this one truly demonstrates the entrepreneurial spirit the most. Over at shitsenders.com they have created a nice little business by selling people bags of, well, shit. The service allows customers to courier their boss/noisy neighbour/dodgy mechanic a freshly sealed bag of manure, with a strategically placed business card inviting the recipient to find out who sent them such a fragrant gift. Of course, the service is completely anonymous, leaving the 'victim' presumably in an even greater state of shock. Genius if you ask me.