I've gone nose down a few times, nothing that the bucket didn't stop from flipping but a little pucker anyway. Another time, I was going up a grade forwards to pick up a bucket to load on the trailer (ya I know!) and hit a rut, started to go over backwards but a quick reverse and a spin kept the wheel side down. I had been going between a parked motorcycle and a 4 man 4wd ATV, I did miss both of them when it was all over but it was close. Always keep the heavy side uphill in one of these SS, they stay upright better that way!