Ahem,
1. Nitro Glicerine(sp) Pills, and then jumping off either a really high building or an airplane. I end up falling many-a-storey, and then explode on impact with the ground. I think...
2. Hinamizawa Syndrome. After increasing paranoia, I kill the person who I think it out to get me, rather violently, and then begin to see everyone of their sex as exactly how the look like. The stress and the iching incorporated with it get to me, and I claw at my own neck, eventually hitting my jugular and bleeding to death.
3. String myself up in downtown so that a) I am off the ground horizontally and a good distance up, and b) an axe just the width of my neck cuts my head off when I give the signalpull a rope releasing it with my foot. It should be noted that my hands have been superglued to my head.
4. Spycrab.