This isn't one of the smartest things I've ever done.
I was off hiking through remote Xhosa villages when I decided to jump off of this waterfall. About half way down the 17 meter (55 ft.) drop I thought about how far of a hike it was to the nearest hospital, and of how many days travel it was to the nearest hospital I wouldn't mind being treated at. Of course, the ice cold water quickly took my mind off of that.