We once wound a geocache in a hollowed out book. First it caused a lot of anger from some of my colleagues until it was confirmed that it wasn't one of our book

We once wound a geocache in a hollowed out book. First it caused a lot of anger from some of my colleagues until it was confirmed that it wasn't one of our books, but one brought in from the outside. In the end it was tagged, registered, and put back on the shelf were it was found.