Roy:
Not personally, but a friend rolled our 2240 John Deere with bucket. He had been using it in a hollow, smoothing where a new pipe had been run. He then went up a steep path, heading toward a horse barn. Unbeknownst to him, one of the horse fanciers had decided that since the manure spreader was broken, and a manure pile unacceptable, the appropriate way to dispose of the stall muck was to dump it over the hill. Add a little rain, and we had a stretch of path that you couldn't even stand on, let alone negotiate with a tractor. When the 2240 started to slide and turn, the operator departed safely over the uphill tire, and the tractor turned over on its side. The ROPS caught it, so if he had had his belt on properly and ridden it down, he probably wouldn't have been hurt, but he now uses the incident as an argument not to use the belt.
No one was hurt in the turnover; nor was anyone hurt during the process of righting the tractor, letting the fluids drain back over night, and then driving it off the hill. You've never seen as careful a group of people as we were after the rollover.
Nothing was said to the horse fancier. We merely changed the terminology. The manure pile is now a compost heap, and therefore acceptable. And that particular path is not likely to be used again by a tractor. It shouldn't have been, even before the manure made it a snowboard chute.