Barbs and Teeth

Came across the Anti-Rape Female Condom, designed in South Africa by Sonette Ehlers, when doing some vagina dentata research on Wiki. To quote:

'The device is a latex sheath held firm by shafts of sharp, inward-facing microscopic barbs that would be worn by a woman in her vagina like a tampon. Should an attacker attempt vaginal rape, the penis would penetrate the latex and be hooked by the barbs, causing the attacker pain and (ideally) giving the victim time to escape. The condom would remain attached to the attacker's body and could be removed only surgically, which would alert hospital staff and police.'