So I kind of hastily posted this one as a follow-up:

https://news.ycombinator.com/item?id=43737275

While librarians can be "dangerous", libraries can be extremely beautiful (or vice versa, who knows...?). When traveling, I often try to visit ones, and, of course, we have some iconic photographs of them too.

So it might have been what they call a Freudian slip... ;-)