Ed Bilodeau has a few words about food/drink/trash policies. If you feel that you must have them, enforce them.
I am calling on librarians everywhere to pull yourself away from the Internet and take a few minutes every day at different times of the day to take a stroll around your library and ensure that your policies regarding food, drink, and general proper use of the library are being respected.
Minneapolis Public Library tosses books in dumpster. Enterprising blogger/reporter takes pictures. I dropped the library a note to see what they have to say about it. I got my favorite multi-volume set of the OED from a library dumpster on a good tip from a friendly librarian. [lisnews]