INJURED HAD GOTTEN ON MANTRIP TO LEAVE UNDERGROUND SECTION. A FELLOW EMPLOYEE, ON ANOTHER MANTRIP, RAN INTO THE FIRST A TOTAL OF THREE (3) TIMES. MINING EQUIPMENT OR SYSTEM PLAYED NO PART IN THE ACCIDENT. NO PROTECTIVE ITEMS COULD HAVE PREVENTED THE ACCIDENT, BUT FELLOW WORKER'S PROFICIENCY AND ATTITUDE A DEFINITE FACTOR.