Once, there was a tragic accident on a set of traintracks:
 
                      A busload of children was crossing the tracks, and could 
                      not get out of the way in time to avoid the approaching 
                      train. The train smashed into the bus, killing most of 
                      the children and the driver survived. Now, if your car 
                      stalls on the tracks, it will be pushed over the tracks 
                      to safety before the train hits you.  The ghosts of the 
                      children have saved you, and sometimes you can see their 
                      small handprints in the dust on your car. 

                      The most well-known example of this urban legend are the 
                      haunted traintracks in San Antonio, Texas. Many people 
                      travel to this site on Holloween night to see how true 
                      this legend is. Stop the car in the middle of the tracks, 
                      turn off your engine and wait and see.