Originally Posted by potter

I can't believe this has not been said yet..

Get some glue, rope, and piano wire. Get to a ledge fairly high, or anyplace you can jump off and let yourself hang a few feet off the ground.

Tie rope to your feet, enough so that with your arms stretched out you will be like five feet off the ground as you hang upside down. Tie piano wire to the same spot and around your neck, but make the line short enough so it will catch half way before the rope does. Using industrial glue, glue your hands to your head. Let dry, jump.

The piano wire should cut right through your neck, chopping it off on your way down. The end result will be you hanging upside down, decapitated, holding your own head.