Let's see....
At 10, I developed a severe abscess when my last baby tooth didn't get loose and the permanent tooth started pushing it's way up. Went from a bump I ignored for several weeks into the entire side of my face swelled up like Popeye overnight. And **** did it hurt. Spent a week in the hospital over that shit. The doctor told my mom that the infection was so bad that it would have killed me in within another day.
Around the same age, I fell out of a tree, probably 30 or 40 feet. Hit enough branches on the way down to break my fall. If it happened to me now I'd surely explode, but back then all it did was knock the wind out of me. The resilience of children.
Swimming off Paradise Island in the Bahamas, a wave drove me into the bottom - hard. Hit on my back just below the neck. Nearly drowned, probably came closer to being paralyzed than I want to know.
More incidents in cars involving close calls with other vehicles or those giant long-legged rats otherwise known as deer to count. A swerve here, a brake slam there, gunning it at the last second - I've always (knock on wood) made the right split-second decision. I think I've got an angel on my shoulder. Probably has PTSD.
A couple of years ago, I was walking in Chicago on the way to the train station, passing in front of a parking garage. I was just about to cross in front of the exit when a car came shooting out onto the street, fishtailed and disappeared down Franklin Street. No idea if the driver had stolen the car, was pissed off or just in a hurry, but he (she?) obviously didn't check for/give a shit about pedestrians on the sidewalk, and had I been two steps farther I would have been splattered. That kind of freaked me out.
And as mdchiefsfan said, the things you don't know about.....