Don't think there was anything as a baby, other than being a high-risk pregnancy.
At about 6, my aunt's husband went crazy and tried to kill everyone. Had police escorts to school for about a year and was taught to use a baseball bat on him if he came to the door and how to protect myself... Fun times.
At about 8 I nearly drowned knee-boarding. The board flipped, I couldn't get myself out of the straps, and I remember watching the sandy bottom and the fish swimming around... then nothing for an hour or two. I apparently was pulled out blue-lipped but breathing... I think.
At 11, just before Halloween, I developed a stomachache. Mom thought I was sneaking candy and/or getting my period, so threw a hot water bottle on me for a few days. I made it to a half dozen houses on Halloween before I had to go home ill. (Vomiting by this time.) The next day I was still ill, so we went to the doctor. She looked at me and quickly told us to get to the hospital, so my mom drove there with me wailing every time the car hit a bump. Seven fucking hours later at the Children's Hospital, a Resident came in, looked over my chart, and declared I had a UTI. ... I don't quite remember the next part, but apparently my mother screamed so much another doctor came in, poked my abdomen once, and I was in surgery in less than an hour. My appendix had ruptured and had leaked, I was septic and hours from dying. So, thankfully, my mom was on the ball. I also have quite the scar - it's stretched over the years, but is like 6 inches long.
At about 18 or so, my sister drove me to work in my aunt's tiny little Neon, and some kid ripped out of a parking lot and t-boned us. Thankfully he hit the wheel well, because the damn thing collapsed. If he'd hit the door (a millisecond later), I'd have been in pretty bad shape.
Other than that... I can't think of anything obvious other than close-calls driving and/or crossing the road which everyone has. Cabbies in my city don't care if they hit people when driving, and I walk across a massive intersection downtown every day to get to work. Buses kinda don't stop, either.