Someone apparently dropped a big deuce in the International Space Station's zero-gravty toilet and didn't light a match, because the stench coming from it is so strong that one poor astronaut, Ron Garan, has been tapped to fix the $90 million plumbing system.

It's unclear if the toilet was clogged or if it just stinks, but one of Garan's fellow astronauts, Mike Fossum, told that it's all good: "That's the great thing about spaceflight. One day you're outside spacewalking, doing the most outrageous things the humans have ever done. The next day you're fixing toilets and unpacking boxes." That's easy for Fossum to say — he's not the guy who has to fix it.

Here's a space toilet video tutorial:
Click to view

[Fox; image via Getty]