If you find this disgusting, you're missing the point. In this clip spotted by Laughing Squid, Bill Gates - formerly of Microsoft, now of Saving The Planet - takes a look at the Janicki Omniprocessor (which Gates is helping fund), which sounds like something out of a sci-fi version of SimCity, but as you can see is a machine that already exists and already works.
It's designed to take human waste and boil it. The water vapours are captured, filtered and dispensed as 100 per cent clean drinking water, while the solid matter is burned, which powers a steam engine that generates electricity.
The idea is that they will be useful in places lacking in decent water treatment facilities. Or SimCity expansion packs.