Apparently, a guy in Denmark set his genitals on fire when he farted while he was getting a mole removed from his butt. Whether this is made up or not, it definitely seems like something that could be medically possible.
This is what it looks like when your finger gets crushed by the ridiculously powerful magnets that you bought online at a crazy magnet store. If you're OK with this picture, there's a whole photo essay with accompanying descriptions, like “My finger got splashed out.”