Cause of death: Perforated colon
When it happened: July 2005
Where it happened: Kings County, Wash.

Brace yourself for this story. In 2005, an engineer Kenneth Pinyan died after letting a horse, well, ride him on a farm. Hours after Pinyan had anal sex with the stallion (and allowed a friend to film the act), Pinyan died from a perforated colon in the emergency room. A perforated colon is a ruptured intestine, FYI. Apparently, Pinyan delayed his visit to the hospital because he didn't want word of his weird injuries to affect his job. It is now illegal both to have sex with animals and to film said sex.