VOMIT SAUNA

Eleanor Harris reports on scientists using themselves as test subjects. Some of it isn't pretty:

Emboldened by this success, Ffirth graduated to dribbling the vomit into his eyes and smearing assorted other bodily fluids from yellow-fever sufferers over his person - including blood, spit, sweat and urine (see Top 10 bizarre experiments, if you really want to). He even sat in a "vomit sauna" full of heated regurgitation vapours, which caused him "great pain in [his] head", but left him in rude health.

Then there are the hook worms...

Update: Self-experimentation can be dangerous:

The Maryland woman was flown to hospital on Monday after she was injured in the incident involving a sex toy attached to a sabre saw blade, according to NBCWashington.com.