EMPLOYEE WAS REMOVING USED WOOD PALLETS FROM THE FIRING FLOOR AREA WITH THE FORKLIFT. ONE OF THE PALLETS WAS CRUSHED AND DAMAGED. AS HE PROCEEDED TO DISMANTLE IT WITH A HAMMER, A PIECE OF NAIL BROKE LOOSE AND IMPACTED HIM IN THE RIGHT EYE. AT THAT MOMENT THE EMPLOYEE WAS NOT WEARING HIS SAFETY GLASSES. THE IMPACT LACERATED THE EYE AND HE REQUIRED SURGERY.