I hate when this happens: In one of the most bizarre medical mishaps that I've ever read about, a Danish man farted while his physician was in the middle of removing a mole on his buttocks with an electric scalpel. A spark from the scalpel ignited the gas which then set his genitals on fire, because they had been washed with "flammable surgical spirits". As WonkoSlice says, "It's funny because he's Danish"...