There are some things that are just too stupid for words. Bungee jumping is one of them. This would be another...
Zorb Ball Accident in Russia (http://www.youtube.com/watch?v=2-WLDfhhOQA#)
But that said...in a free society (and Russia is looking more free than the USA with each passing day) you are permitted to put your life at risk and get killed if you are so inclined. Personally, though, I cannot imagine being strapped into a ball and rolled down a hill with a 1.5 kilometer drop off on one side with no barrier at all preventing the ball from zipping over the cliff. To me this is akin to playing in traffic. Sure, you might not get killed but there is a reasonable probability that you will end up dying in a very painful and public way. People will be talking about what a dumbass you were for a long time. Great way to be remembered. "Oh yeah...Denis. What an idiot. Nice guy and great family man but otherwise he had sh*t for brains."
LINK (http://www.dailymail.co.uk/news/article-2259094/The-horrific-moment-father-young-girls-dies-inflatable-ball-zorbing-spins-control-falls-cliff-Russian-ski-resort.html)
A father-of-two was killed in a horrifying accident when a giant inflatable ball in which he and another man were rolling down a mountain plunged off a cliff at a ski-resort in southern Russia.
Denis Burakov, 27, married with two young daughters, broke his neck and spine in the zorbing accident, say reports.
His companion Vladimir Shcherbov, 33, was hospitalised with concussion and multiple lacerations to the head and body, but miraculously was later released.
Longer video showing the men victims being strapped in...
Russia investigates horrific 'zorb' ride death (http://www.youtube.com/watch?v=52GMLH8MAII#)