OK knotties, help me out here please. A few of the guests invited to my wedding don't exactly have the best table manners. They are very close friends of the family, but their behavior (4 adults) can leave other people feeling uncomfortable. They often discuss issues like personal health (in gory detail) while at restaurants or in other public venues in very loud voices. They often don't realize that they are upsetting the people around them. These people are like a second family to my family, and I don't want to hurt their feelings (they tend to get very emotional). How do I politely ask them to keep topics of discussion appropriate so as not to gross out other guests during the wedding reception? As I said, they are very close to the family and have already been invited, but I don't want them to cause a huge scene during dinner. (Which they do quite often)