EE WAS GOING THRU THE SPOIL CUT W/HIS SCRAPER AND WHEN 1/2 LOADED, HE CAME TO A STOP. THERE WAS ANOTHER SCRAPER COMING FROM BEHIND IN THE CUT, AND NOT SEEING THAT THE SCRAPER IN FRONT HAD COME TO A STOP, HIT THE FIRST SCRAPER FROM BEHIND, JARRING THE OPERATOR OF THE FIRST SCRAPER.