Oh, thats an easy question; I nearly rolled my brand new SUV. It actually happened to me about a month ago.
I was down in Greeneville TN for a DJ conference and decided to take a few hours on the last day to log some TN caches. I accidently drove past the cache and took a wrong turn down a side street. Well, the road that I turned down bordered a steep, grass covered ravine. The road actually overlapped the ravine for about a foot, creating a lip. I pulled into a driveway across from the ravine, and backed out to turn around. I backed out too far and drove one of my back tires over the lip.
Immediately one of my front tires went up in the air and I slammed on the brakes. Unfortunately, my Saturn VUE is a 5-speed and only front wheel drive, so I knew it was going to be tricky to move forward, but I had to try. So, I put it in 1st gear and let off the clutch. As soon as I did, my car fell backwards over the lip and down the ravine, my 2 front tires pointed skyward. Trust me, you havent had your nerves rattled until you see the top of the sky in your front windshield....about 5 more inches of backwards tilt and my car would have rolled end over end all the way to the bottom.
Thankfully, about halfway down the car slammed back down to all fours and slid sideways the rest of the way down the hill, stopping a few feet from a large stand of trees at the bottom. I tried to drive back up and out of the ravine, but recent rains had made the grass just way too slick, and my poor excuse for an SUV could barely make it halfway up without sliding down again. All in all, a very scary experience. But, all in the name of the hunt, right?