I'm doing it in October, sponsored for charity. I've always kind of wanted to try doing it, but not enough to pay for the experience, so this is perfect!
Ever done a sponsored anything else?
Or, have you ever done any other thing that some people think is crazy or brave, like bungee-jumping or parachuting or whatever? (Frankly I think parachuting is one hell of a lot more scary than walking over hot coals!!)