When I was 4 my grandmother pulled in front of the house to pick me up.
I went to get in and slipped and fell between the car and the curb.
Grandma freaked and tried to reach over across the bench seat and grab me (remember this was pre car seat hysteria). She knocked the car out of park, then hit the gas as she tried to slam the brakes. I was ragdolled between the door and the curb and she barely got stopped as the rear tire started really kicking my ass. To this day I remember vividly everything right up to the accident, but nothing else until I woke up in the hospital a week later.
Two months in the hospital for that one. Oh and last rights and the whole bit. Grandma has never forgiven herself, but I have.
She's still with us too, and I do everything I can to let my little girl spend time with her great grandmother.