Normally, inflatable ball rides are pretty safe but when you mix a snowy mountain and a steep cliff, things can go wrong in a hurry.

This video taken in Russia shows a group of guys fooling around with the orb as they go up and down the snowy mountain. After a few rides without any issues, a couple of riders decided to take it down once more. That's when things turned for the worst as the no one was able to stop the ball and it went over a cliff. It is unknown at this time if anyone perished due to the out of control inflatable ball.

It's always that "one last time" but probably because after something goes wrong you tend to stop.