@stjj89
@jazzfan and everybody else -
You bring up a good point. It will be helpful for everybody to watch over each other's gear, making sure nobody pockets anything, especially if it's somebody who just stopped in to take a look.
I will be arranging the tables in a sort of circular formation, vaguely like the photo below. This way we can all keep a better eye on each other's things, and it will all be in the same room so no hidden areas. However when I spoke with the library manager he did tell me that we should only expect maybe 2-3 outsiders the whole day.
The event will take place in a completely separate room from the library, and I recall walking by another event in the past there - it generally gave me the impression that it was a private event so I didn't even want to disturb it. Saturday is not a very busy day there, and most others will walking by will probably not even think to disturb us as well. I'm sure anybody who does come in will have no idea what's going on, and just have basic curiosity to check it out for a moment. Think of it as an opportunity. Just think of how awesome that would have been if you were introduced to this hobby at a younger age.
Nevertheless, I will also be reminding people to watch over each other's things closer to, and during the meet.
(example table formation)