EMPLOYEE WAS APPLYING HIS WEIGHT TO A BAR TO CLOSE A RAILCAR DOOR. THE BAR SLIPPED AND FELL TO THE GROUND. EMPLOYEE'S WEIGHT WAS STILL ON THE BAR. THE BAR FELL ON THE MIDDLE FINGER OF HIS RIGH T HAND. HIS FINGER WAS MASHED, REQUIRING STITCHES AND THE CUTTING OFF AND REPLACING OF HIS NAIL.THE TIP OF HIS FINGER WAS FRACTURED.