I'm back at a certain small Midwestern University and we have a new stats-tracking database - no more check marks on paper. During the summer,when things were slow, librarians were careful to record their transactions in some detail, and my coworker has pointed me to this one:
Q: Best question ever - "Do you have books on vampires?"
A: "Novels or more like non-fiction history?"
"Non-fiction. I've been bitten by a vampire"
"When was this?"
"A couple weeks ago in my room"
"Did you have it checked by a medical professional?"
"No, I have not"
That was recommended, along with a few books in GR830.
(GR830, btw, is where you would shelve books on folklore and magical creatures; I'm guessing it takes up more shelving at Hogwarts than it does here.)