Thread:Disneyfan789/@comment-5091911-20190705081626

Don't let it get to you. If he/she is harassing or refusing to cooperate with rules and instructions he/she must not be allowed to get away with it. As an Admin you are the authority. Ignore them and do what you think is right.

If it were me, I'd temporally suspend him/her for his/her disobedience, reminding him/her that rules are rules and fail to comply will have consequences. Either cooperate or go elsewhere. 