My boss can't fire anyone, unfortunately. He can just keep badgering HIS boss and HR until someone takes action. The only way he can force them to fire her is if he keeps giving her official reprimands. Those take a while to get to, because you have to go up the chain of disciplinary actions; Verbal conversation x3 -> verbal warning x3 -> written warning ->verbal reprimand x2 -> official reprimand. She finally got her to the 'verbal reprimand x1" level today. She needs 3 official reprimands for the same behavior to get fired.