It happened to me few times too .. one time with freezing rain .. my car slided to the street .. and I was holding my car ..
One time .. my remove starter .. started my car, but It was in FIRST gear .. so the car kept moving . I was in the middle of my car and WALL .. and my car kept hitting me ... after 5 mins or so .. ( hitted me 10 times or more .. ) I stopped my car .. and my stomach was all " yu " ..
Another time .. my mom drove over my foot .. ( my wife did that too .. )