So this weekend my parents and i were talking about having to call people who don't rsvp. My dad was fine with calling "his" people ( coworkers, his side of the family etc). my mom ( who is all about going by the book) said that she is not calling or emailing anyone bc she already knows who will and won't come. The problem is that she thought some people weren't going to come and then they already sent rsvp's saying they are. I can't guess on the number of people. i need to know who for sure is and is not coming. I don't want to have too much food or run out of food before everyone gets food. How can i tell my mom that she NEEDS to get in touch with "her" people so i can have a more accurate count? I understand some people are common sense that won't come but i can't guess on all the people who don't rsvp.