Annalee Newitz of io9 compiled a list of some of the grossest jobs in scientific research, like fart statistician:

How do you know when you fart too much? Because gastroenterologists have studied human fart production, figured out what the average number of daily farts should be, and determined that levels above that might indicate a medical problem. All hail the fart counters, who are keeping our gastrointestinal tracts healthy. And because I know you want to know: The mean number of farts in humans is "13.6 episodes per day," according to one expert.

Other featured jobs include testicle crusher and corpse grinder.

Link | Photo (unrelated) via Flickr user Charles Williams used under Creative Commons license