Have you ever tried one of those "Steep Slides" at a Family Fun Center? You start at the bottom and hold onto a handle that hoists you along the slide until you're about 32-feet up. Then you let go and slide down.
Well, this guy with a fear of heights gave it a go, but the higher it went, the more he screamed "Let me down." He was up there pleading for almost 30 seconds before summoning up the courage to let go, and "enjoy" the ride.