Then you need to:
1) Spend more time looking at your rear view mirror.
2) Give yourself 1-2 cars of distance between you and the car in front of you when stopped for when you do see an SUV tumbling out of control because they can not stop in time, you will have the space to move out of their way.
3) Park in strategic areas were people can not possibly hit you.
Been there, done that. I have successfully avoided being rear ended a number of times because I am always alert of my surroundings. Last time this happened to me was on the highway. Of course, some guy in his SUV couldn't stop in time and he was plowing straight towards me. I moved my car forward and to the side, and when he finally came to a stop, I was completely out of his way.
If I was this paranoid about getting into an accident, guess what. A plane can fall from anywhere. I might as well start looking for a house in a no fly zone...
And let me tell you a little story..
Buddy of mine was doing 40-45 in Porsche 944. A guy in a full size Mitsubishi Montero decided to run a stop sign. My friend hit the Montero right on the axle in such an angle that it caused it to flip over. There was a little girl in the truck that flew out of the Montero and she had to be airlifted to the hospital. My buddy and his 70yr old father simply walked right out of the Porsche while the people were kicking and screaming in their flipped SUV. So much for safety.