Absolutely insane! It never seems to surprise me the lengths, more like heights some people will go to when it comes to entertainment and thrill seeking. I don't think at anytime during my life, at least so far that I've ever thought to myself "I'd like to hop into a hot air balloon with a wing suit, swing off the edge on a rope swing way the hell up in the air, let go and plummet to the ground." Maybe it's just me because these guys actually did it!