So, I invited this woman to my wedding. She is... intense. People don't invite her to events for this exact reason. She is insisting on serving homemade liquor and marijuana at my wedding. Obviously that can't happen, but she just keeps pushing and pushing, to the point where she said something about wrecking my wedding dress if I didn't let her hand out drugs during the reception.
I am currently on good terms with her relatives and I kinda need it to stay that way, but I also can't have her giving out intoxicants during my reception. How do I stop her from doing this, or disinvite her without causing a strain on my friendship with her relative?