Give advice to someone who wants to exclude their father's wife from a family event due to her involvement in criminal activities.
LW1: Ordinarily, I would say that your father's decisions-- however foolish-- are not your business, and that you should include his wife. But since she has been involved in illegal activities, then I fully support your wise decision. You are the parents, and the safety and well being of your children takes precedence over your father's feelings. Sorry.