Found out my mother in law to be doesn't want me marrying her son, we are trying to piece together why still. She has a history of causing scenes his enter life against lots of people. She hates our officiant's wife and also hates her ex huband, who is my fiance's father. I don't want her making a scene. But I don't want it to seem like I'm picking on her. So here is my question:
Would it be tacky to put up a no arguing sign. No arguing, fighting, causing trouble or you'll be called out.