I saw a girl get hit by a car while she was on a Moped about 6 months ago....I stopped and called 911 and went over to her, she was barely breathing and I didn't know what to do...I'm amazed you kept yor calm....Luckily in my case, a Nurse also stopped and went over to her just after me... but it took me awhile to get the image out of my head, so hopefully you'll do better....