THE EMPLOYEE WAS TRYING TO WARN ANOTHER EMPLOYEETHAT WAS ON A FORKLIFT WITH A MOTOR. THE FORKLIFT GOT HUNG ON THE DOOR. THE EMPLOYEE NOTICED THAT THE BOOM AND THE MOTOR WERE HUNG ON THE DOOR AND TRIED TO WARN THE OPERATOR. IN THE PROCESS THE EMPLOYEE'S HAND WAS WAVING BETWEEN THE STUCKMOTOR/BOOM AND THE I-BEAM. THE BOOM CAME LOOSE AND THE EMPLOYEE WAS HIT IN THE HAND.