"Zorb" ball takes two Russians over snowy cliff in deadly accident
 

Nothing gory here but you can see the giant ball leave the track:

http://www.youtube.com/watch?v=sBAtLGMamVU

The guy in it who died leaves a wife and two small kids. Horribly sad. Can't believe the other guy escaped with minor injuries.

It looked like the two were on opposite sides of the ball, so whomever is on the underside at the instant that the ball hits a rock is in big trouble, where the other guy might escape a lot of that impact.