I was walking (in high heels ... rare for me) across a large driveway into a major hotel when the right heel of my shoe caught in a crack in the concrete and I fell.
Unfortunately, there was a cab that had already started a left turn to come up the drive, so he ran over me. He did try to stop as fast as he could, but that left me under the car (not pinned, just between the wheels).
To his credit he did get out and try to help me (as did about eight other cabbies that were parked in front of the hotel). Mostly they argued about whether or not I should be moved or not.
Edit: at least I think it was a cab. It was big and blue.