last time I tried it (without the 'fire' I hasten to add) I clocked myself full whack in the balls. It hurt, a lot. So good skills if you can do it properly, it's amazing to watch it done really well
I certainly don't have good skills! Was a bit scared about the whole fire thing, I'm looking forward to seeing if the photos make me look like a complete retard or not! I hit myself in the head once but luckily didn't set my head on fire.