Almost everyone encounters a difficult person now and then in personal and professional life. The best defense against conflict in such a situation is to be prepared for interacting with difficult individuals.
State your concern from your perspective, for example:
Focus on the facts. Finding fault can prevent problem-solving.
After you state the problem, allow silence until the other person responds.
Notice: The information on this page summarizes provisions of university policies and/or collective bargaining agreements. Refer to the Personnel Policies for Staff Members (PPSM) or applicable collective bargaining agreement for full text of referenced information.