Well, I was going through the minotaur maze as my elven priest and was casting magic map, teleport etc. I finally found the down stairway and was going to teleport there, but apparently I hit the wrong key, because the next this I see is that I drained my life away with an energy ray. Apparently I hit G instead of F and was casting death ray, not teleport on myself. Gah. And I thought it was annoying when a typo made me kill a cat.