Singular
Undoubtedly the most dangerous singular activity would be autoerotic asphyxiation. Usually performed by adolescent males, this technique is the deliberate constriction of blood flowing to the brain while, uh, masturbating. The lack of oxygen produces lightheadedness, supposedly enhancing the sexual experience.

As you can imagine, squeezing the blood out of your brain isn�t the healthiest of activities. On occasion the carotid artery collapses, producing unconsciousness in seconds, and eventually death. One researcher estimates 500 to 1000 deaths annually nationwide, so this is not something you should approach offhandedly. Also, not only do you run the risk of dying, you also risk looking incredibly stupid when they find you.

Shag, do you live in one of those retirement?? are you a lonely, older lady that needs some lovin??