Plaintiff sued his employer. Employer’s attorney wrote confidential email to plaintiff’s supervisor to inquire about facts of the case. Supervisor sent a screen shot of the email to plaintiff. Plaintiff’s counsel properly disclosed to employer’s counsel that he had received the privileged communication, but then refused employer’s demands to destroy or return his copies and instead sent copies to plaintiff’s experts and threatened to make the email a trial exhibit. Relying heavily on State Comp. Ins. Fund v. WPS Inc. (1999) 70 Cal.App.4th 644 and Rico v. Mitsubishi Motors Corp. (2007) 42 Cal.4th 807, this decision affirms the trial court’s order disqualifying plaintiff’s attorney and his experts for their actual and threatened use of the privileged communication.