My mom asked if I was inviting this one person that is good friends with the older people in my family. Although I know who he is, I wouldn't consider him a friend or someone I would invite to a party, let alone my wedding. Well, she made the comment of "I wouldn't be surprised if he just showed up" so that freaked me out a bit. Then I started thinking, what if a single person just assumes they can bring a date or if people that RSVP no, or didn't RSVP at all and I'm unsuccesful in contacting them, just show up. I made it clear on the RSVP card how many seats we have reserved for each individual/couple/family, but I'm sure some people will either ignore it or not even read it.
I know I am probably over thinking this, but I'd still like to get a back up plan in place in case something like this happens. What are you going to do if unintended people show up to your wedding?