http://www.cracked.com/photoplasty_1366_the-17-kinkiest-sexual-subcultures-around-world/
There are fetishes for being in a car crash and falling down the stairs. I may question the logistics and origins of a kink, but I don't exactly judge people. However, this is putting orgasms on a higher priority than one's life, able bodied-ness, or general well being. If your arousal becomes more important than your life, you might want to seek therapy.