You know how some libraries have those book detectors that go off if your book hasn't been scanned out properly? Or if you accidentally tried to leave with an un-checked out book? And still, books walk out of libraries, never to be returned again.
Well, we have the solution for libraries experiencing book problems of this type:
Protect Your Library the Medieval Way, With Horrifying Book Curses
You know what those crafty medievalists did? At the beginning or the end of books, scribes and book owners would write dramatic curses threatening thieves with pain and suffering if they were to steal or damage these treasures. Bam! Problem solved!