WAS CUTTING TRACK PIN FROM TRACKOF A DOZER. HAD TO LAY DOWN TO CUT PIN. A PIECE OF HOT SLAG METAL BLEW FROM PIN AND WENT INTO LEFT EAR. EMPLOYEEDIDN'T THINK HE WAS HURT AND DIDN'T REPORT THIS TO FOREMAN UNTIL 3-7-00 WHEN EAR BECAME INFECTEDHE GOT A PRESCRIPTION FOR INFECTION.