What about dying, completely, utterly alone, devoid of all sensory input?
What about bringing on the death of the entire world, all your family, friends and loved ones and knowing you solely are responsible and that there is nothing you can do about it?
Or even if you knew you were responsible for the death of even just one loved one?
JudoMaster's one is probably another one on my list of fears.... *shudder*
- The Jake