I heard one working in a used bookstore one time "It's a book with either the Pope or The Beatles on it" turns out Life magazine had a year in review book with both the Pope AND The Beatles and our customer service guy knew EXACTLY which book it was and where it was in the store (with no inventory system).

"What wast the movie with the other red headed lady?" A question I got at Blockbuster.

Now as a librarian, this shit is real.