Via Slashdot, Popular Science has released their annual list of the 10 worst jobs in science. . It takes some patience to click past the ads and stuff, but they do a pretty good job of explaining why people are doing these jobs.
Money quote, from number 8, "do-gooders" (people who pay money to join environmentally-inspired digs as a vacation):
Volunteers dig soil pits, analyze dirt, measure the depth of frost melt, and play a game called Page Count: "You close your notebooks as fast as you can and see how many mosquitoes you kill," Kershaw explains. "I think the record is 56 mosquitoes in one whack."