Apparently they can pay you enough. It seems some people will do anything, even be human guinea pigs, if the price is right. Consider the following clinical trials, all submitted to by consenting adults:
Last week it was reported that aerospace giant Lockheed Martin is sponsoring a study that pays volunteers $1,000 apiece to ingest perchlorate--a pollutant found in rocket fuel--every day for six months.
Currently recruiting A government pain-measurement study will pay $100 every time participants let a machine squeeze their thumbnail until they cry "Uncle!"
1999 Sixty volunteers pocketed $460 each for taking daily capsules of a...