So my coworker--whom I adore, btb--was checking in with me about what information should and should not be deleted from MARC records. I clutched my chest a lot ("OMG you can't delete that!!!") and we determined that the cataloging agency needs to be kept, and the geographic area code needs to be kept, and the genre headings really need to be kept.

Then we looked at the very last field of a record we received from the Library of Congress. (I've mentioned Library of Congress records before. These have all sorts of cool messages in them, like "Needed for Congressional loan--hand carry" which technically don't need to be kept in public library records. Yes, you can delete that.) The very last field of the record generally contains the contact information for the author's literary agent. You know, e-mail, phone number, that sort of thing. I've always kept that info, because really--you never know when you might need an agent's phone number; this is just one of the perks of being a librarian, after all.

Anyway, my coworker points to that field--the one with the agent's contact info--and asks me, "What about the 'Call Mike for a good time' field?" And I go "ROFL!" and fall out of my chair. :P Best MARC field description ever, imho, and I'm tempted to write "Call Mike for a good time" in the field just to see if anyone notices...