INJURED WAS LIFTING DRAW HEAD FROM DECK OF MOTOR WHEN HE SLIPPED ON MUDDY MINE FLOOR. THIS CAUSED HIM TO SMASH THUMB BETWEEN DRAW HEAD & DECK OF MOTOR. HE WAS WEARING METACARPAL GLOVES. WENT T O HOSPITAL & DIAGNOSED WITH FRACTURE TO TIP OF THUMB. INJURED RETURNED TO WORK ON 11-26. 11-22 & 11-23 WERE SCHEDULED HOLIDAYS FOR THANKSGIVING.