Well, I guess it would be the thus-far only serious accident I have been involved in (knock on wood). I was 18 and it was 2 days before I was to move to the city for my first year of university. I had been out with friends to say goodbye, and it was 5 a.m. by the time I got into my car to drive home. NOTE: I'm a teetotaller, always have been, so there was no alcohol in my system. Anyway, I was driving too fast on a freshly-graveled country road, anxious to get home before my parents woke to find me still gone (not that I'd get into trouble, but they would worry). My tire caught on a ridge of gravel, the car swerved one way, I overcorrected and it swung the other way. My back wheels slid into the ditch, whipped my car around and rolled it completely over once, landing upright at the bottom of the ditch, facing back the way I'd come.
I sat there momentarily, then reached forward and shut off the car. I tried to remove the keys, but couldn't (realized later this was because I had forgotten to put the car in "Park") I took a breath, looked around and thought, 'okay, what do I need?' I grabbed my bag, which had my wallet, cds, cellphone, etc. in it, then, since it was dark out, figured I should find the flashlight I kept in the car. I reached down and picked something up, but it turned out to be the rearview mirror, which had apparently fallen off in the roll. I put it back down and looked into the backseat. The flashlight was sitting in the middle of the backseat amongst grass and broken glass from the shattered back window. I picked it up, got out of the car, looked around and decided to walk. As I climbed the side of the ditch back onto the road, I heard coyotes howling somewhere in the darkness. Great.
I checked my cell; no service, of course. I started walking. I knew where I was and was going to walk to the nearest farmhouse, which happened to belong to a family friend, to use their phone. Failing that, I knew my mother had to work in town at 7 that morning, and so would be coming up the road in an hour or so anyway. I could flag her down. So I started walking, alternating between talking out what had just happened to myself and cursing at my useless cellphone. As I reached the farmyard, I started to feel relief, until the pair of large dogs started barking out warnings. I stopped, realizing that since I hadn't been to visit this farm in years the dogs were more likely to attack me than be friendly. Deciding that being mauled by dogs wasn't something I needed to add to the night's list of problems, I turned back to the main road and continued walking.
As I walked, the cows in the pasture by the road started following alongside me, prompting to bull in the opposite pasture to start bawling loudly at them. I started laughing at the ridiculousness of it, and that's when I noticed that the only apparent injury I'd received in the roll was a broken thumbnail, which made me laugh harder. "I rolled my car and broke a NAIL!" A few minutes later, I realized that, instead of turning back onto the main road as I'd thought, I'd gone straight, and was now at a farmyard I didn't recognize. Conceding defeat, I approached the house and knocked on the door. The farmer answered in his pajamas, it was only about 5:30 by then. I explained that I'd been in an accident, and could I use his phone? I called my parents, first assuring them that I was fine before explaining what had happened. They arrived about 15 minutes later to take me home. While I waited, the farmer told me that this was the same house my sister had come to to phone home when she rolled her truck, a few years earlier.
Anyway, after getting home (and not sleeping as my mom wanted to make sure I didn't have a concussion first), going back to the accident site to meet with a police officer (the passenger side of the car was crunched a bit, wordlessly indicating that it was a good thing that, empty, side had taken the brunt of the roll), and going into town to give a statement, it was all over. I went home, spent the day packing, got little sleep the next two nights, and had to deal with moving into a new city and figuring out the layout of the university the day after. Which was horrible, but at least I made it there.
My only injuries were the aforementioned broken thumbnail, and a bruise by my right eye (likely the rearview mirror had conked me when it fell off during the roll).
So, perhaps not a bad enough accident that my walking away was miraculous, but I'm certain I was lucky to have such hugely minor injuries anyway. Not an experience I'm eager to repeat, at any rate.