I've noticed that a lot. People are backing out of parking lot spaces not even looking, just backing. Face forward, no right or left. I always bless my driver training instructor decades ago. His admonition> "Drive defensively, like the other person is going to do something stupid". Like, that person doesn't look like they're going to stop at that light and in the last couple of years that was the right call a few times. Slow down when coming to a green light intersection, assume nothing. Four way stop sign. Entering busy street. Look left, right then left again proceed on clear. These have helped me in 49 years of driving cars, eighteen wheelers and trucks of all sizes. One important one on trucks on expressways. Try to stay out from behind them on fast roads. They do shoot rocks out from tires. Truck tire flaps or not. If you're stuck behind one at speed make sure they have tire flaps and back way off(thanks texas-t). They do help some on the rock problem. Happy driving.
Oh and yes, glad you are okay. 
Hope the pain goes away soon and you heal okay.
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