EE STATED HE WENT TO THE INTERSECTION TO HANG A VENTILATION CURTAIN. WHEN HE BENT OVER TO PICK UP THE CURTAIN A PIECE OF ROCK/COAL FELL FROM THE RIB STRIKING HIM BEHIND THE LEFT EAR. HE SUFFER ED A 1 1/2 INCH LACERATION WHICH TOOK 3 STAPLES TO CLOSE.