Anatoli Brouchkov, a Russian geocryologist, injected himself with a 3.5 million year old strain of bacteria known as Bacillus F, which he found in a permafrost sample, just to see what would happen. – WTF Fun Facts
Source: https://www.vice.com/en_us/article/yp3gg7/meet-the-scientist-who-injected-himself-with-35-million-year-old-bacteria
