Check out dis Anti-Rape Device. (Mahalo Cindy P.)
Rape has become endemic in South Africa, so a medical technician named Sonette Ehlers developed a product for woman to fight back. Ehlers had never forgotten a rape victim telling her forlornly, "If only I had teeth down there."
Ehlers created a product she called Rapex. It resembles a tube, with barbs inside. The woman inserts it like a tampon and any man who tries to rape the woman impales himself on the barbs and must go to an emergency room to have the Rapex removed.
Some critics say this is a medieval punishment. I say bad ass!