A patron came in looking for a book on "the golden braid"... we searched, but the book wasn't what he had in mind. Browsing call numbers he found what he wanted: books on the "golden ratio" or the Golden Mean. This last weekend my wife rented The Librarian: Quest for the Spear (skip it), in which the hero used the golden ratio as a pickup line. The line didn't work.
Seems silly to some, but I think its good to keep track of these little coincidences. There are useful patterns in them. Partly why I'm so darn fascinated with bibliometric analysis. There's a point at which, as a friend recently pointed out, the bibliometric veers into bibliomancy.