One time when I was about 9, I came pritty close. Me and my buddy were playing in the woods below my house. Way up the hill above where we were, two old women got in a Ford LTD. Apparently the woman driving thought she was in drive but she was in neutral, and it never occurred to her to hit the brakes. She rolled about 75 yards down a very steep hill, across another road and the car went airborne. If it had not hit a tree about 6 feet away from where me and my friend were playing it would have landed on top of both of us.
The car didn't make a sound, and we didn't have a clue it was coming until seconds before it hit the tree. It scared me so bad when it hit that I ran and dove through tree limbs and bushes. Many of them had thorns. It pritty much shredded me from head to toe. I didn't feel a thing though, adrenaline is amazing.