Great story in the LA Times the other day about doctors who have experimented on themselves.

" In 1916, Dr. Joseph Goldberger drew blood, scraped scabs and collected feces from patients at a South Carolina pellagra hospital. His aim: to prove to a doubting medical community that deadly pellagra was not contagious. His method: to inject himself, his apparently devoted wife and several colleagues with the affected blood and to feed them the scabs and feces. "