Man comes to the desk and tells me he lost his liberry card.
No problem, I say. It might be in the lost card box.
I start to look through the box and he tells me to stop because his card looks exactly like the one I am holding. But his name isn't on the post-it for that card. He keeps saying -- mine is blue, just like that one... And it was new also. There were a couple cards with no name or date. But none of them belonged to this man, even though they all look identical to his!