TWO EMPLOYEES WERE REMOVING A CATHODE SLIPPER FROM THE BOTTOM OF AN ELECTROWINNING CELL. ONE WAS IN THE CELL HOLDING THE CATHODE AND PLACING TONGS ON THE CATHODE WHILE THE SECOND WAS OPERATING THE CRANE. THE OPERATOR PUT TENSION ON THE TONGS AND THE EMPLOYEE IN THE CELL STARTED TO MOVE OUT OF THE WAY. THE TONGS SLIPPED AND THE CATHODE FELL STRIKING HIS LEFT FOOT, BRUISING IT.