EE WAS IN A BOAT WITH ANOTHER WORKER CLEANING THE WALL OF THE THICKNER. A 3RD COWORKER CLIMBEDINTO THE BOAT, CAUSING THE BOAT TO TURN UNDER A LEAKING SULFERIC ACID LINE. THE EE GRABBED THE 3RD COWORKER SO HE WOULD NOT GET HIT WITH THE ACID & THIS MOTION CAUSED THE BOAT TO SHIFT AGAIN PUTTING THE EE DIRECTLY UNDER THE LEAKING LINE