Here's a video of a (very) recent car chase and shooting in Seattle. The (late) felon in question had carjacked no less than three vehicles and engaged in a running shootout with police before the crash that brought his adventures to a sudden stop. He then tried to get away again, still shooting. The resultant firefight was brief, loud and decisive.
However, watch closely at the two-minute mark. He rams into a small SUV, with the driver still behind the wheel. Watch as the SUV rolls slightly forward, clearly not under control, then the driver jumps from the vehicle and runs like hell.
What if that driver had been you?
That sort of danger can arrive without any warning, and can affect each and every one of us. We can't plan ahead to avoid it, because it will come to us. However, we can think ahead of time about how we'll respond to such threats. We can play the "what if?" game. What if an armed, violent felon suddenly rams my car? What if an armed, violent felon tries to carjack my vehicle? What will I do? If my children are with me, how will I get them out of danger? What options are available to me?
Sometimes there's not much you can do; but if you've thought about alternatives, you've already made a start. The poor driver of that SUV almost certainly didn't have a clue, and simply jumped out and ran. That may have worked - I don't know if she made it out of there - but it might also have got her killed if the firefight had erupted even a couple of seconds earlier. She might have been better advised to duck down on the floor, curl into a ball and make herself as small a target as possible. (Not having been there, obviously, I can't say whether that would have been the best option or not.)
Danger can arrive without any warning. If it catches us off guard and off balance, the odds of our being injured or killed go up exponentially. If, on the other hand, we follow a civilian-legal version of the Marines' fabled motto, we'll probably stand a better chance.