WHILE EE WAS ROOF BOLTING AT THE FACE AREA, HE STRUCK HIMSELF ON THE LEFT KNEE WITH A DRILL STEEL. FOUR DAYS LATER, THE KNEE WAS STILL SORE AND HE DECIDED TO SEEK MEDICAL ATTENTION. AT WHICH T IME THE DR. INSTRUCTED HIM TO STAY OFF HIS KNEE FOR 2 DAYS AND IF IT FELT BETTER, HE COULD RETURN TO WORK, WHICH HE DID. OFF WORK-1-17-02 & 1-18-02.