Dear Young People,

Maybe you have never been taught how to use a library, and maybe this is not your fault, but you should know that libraries are not like the internet. There are no links, and no spiders. If you put a book back on the wrong shelf, it is lost. For years, maybe. If it’s a popular book, the library might have to buy a new one. You might as well have burned it.

So if you can’t be bothered to reshelve a book properly, leave it on the floor. No, seriously. Drop it. Part of the library staff’s job is reshelving books, and they’re much better at it than you are. They’ll appreciate your respect for the system.

Condescendingly,
A Nitpicky Old Fart Who Just Wasted Fifteen Minutes of Her Life Because of One of You

At least I think it was one of you. If it was someone who should have known better, that’s sadder still. There’s an order to things, damnit! Especially in libraries.