Kamikaze

There is a five-mile stretch of road that runs beside the river where apparently the best trout fishing in the world is to be found.  Infrequently there is traffic on the road, more often more on the river.  The posted speed is 45.  Do they gather on the shoulder?  Is it a game, with a reward? More nuts?  The squirrels wait until you are 10 feet away, and then they dart out.  In the process of the dart they have to decide: finish the crossing. return to the shoulder from which they started or stand still.  The driver in the meantime has to decide:  hit them, swerve to the left or the right, depending on what you think they are going to do, or slam on the brakes.  So far in my rear view mirror there has been no road kill