We have all done it, whilst off-roading the truck starts to tip and the first thing we do is grab hold of that rollcage for support. A video has emerged online showing a truck rolling whilst doing a rock climb. The white Jeep rolls backwards and onto its roof and you can clearly see the driver is holding onto the rollcage which is then crushed against the rocks.
The picture below shows the damage caused to the drivers hand after it was crushed between the cage and the rocks. Beware its not a pretty sight!