Was just warned by a florist (who rents out the card holders) that she has heard from SEVERAL brides who have had cards swiped from the card boxes, decorative bird cages, etc... I was shocked, but when I thought about it, with all the chaos of a wedding it would be really easy for a wait staff or other staff member to be "tiding up" and grab a few cards, hide them in a napkin or whatever and you would notice until after the fact. Even if you did notice sooner, you couldn't really accuse anyone. If they got a card with a check in it, it's not much use to them, but a lot of people give cash. I could not believe it -but she said you would be sadly amazed had how often she has heard of it, especially lately, and at the most reputable of places. She said the best thing to do is to put it in a spot where lots of people can see it from different angles -or even better, to not have a box and accept the envelopes from your guests, then designate a "trusted old aunt/family member/friend" who is not going to be dancing much to hold onto a pouch (or something along those lines). I think I am still going to do a card box anyway, but was glad for the warning so I can put a little more thought into what kind and where I will have it displayed. Crazy!!!