Saturday I rolled up onto a group of UTV's in the desert, one of which was on its lid and had rolled at least 1 1/2 times from what I could tell. I didn't witness the accident, but I was the first to roll up to it. The dude was still out cold when I got to him. He had a gash on his cheek bone. A rock kicked up during the roll and clocked him right in the noggin.
A couple years ago we were on a ride. Two guys in a UTV were berming a corner and lost it. They didn't roll, actually went down the revene backwards. They were both strapped in, and were not hurt from the actual accident... But the UTV pulled a bunch of rocks down with it. Both of their faces were cutup bad, looked like they just stepped out of a horror movie.