Sadly theft, malicious mutilation, censorship of pictures and ideas are all pretty common with library books.

Smuggle in a razor blade and cut out the right page from a rare books collection and you can sell the page for several thousand dollars.

I have also seen kids use pictures and text cut from library book in science projects. When asked where they got the pretty pictures the kid said he got them from the library and, sadly, didn't think he had done anything wrong.

There are several local evangelicals who made a hobby of checking out books they didn't agree with and simply failing to return them. They publicly bragged about how they were 'protecting the children' and 'cleaning up the library'. Scores of books were disappeared before their check-out privileges were rescinded. A penalty they loudly protested. Contemplating such behavior makes me crazy.