Around 700 years ago, the word ‘haunt’ first appeared in written English, at least 200 years before it took on the meaning of a ghost frequenting a place.

HZ: It just meant that way where someone haunts a bar, as in they go to it a lot, but they're not an actual ghost. But it also meant to have sex with. And I could not do enough Googling safely to find out why it had that sense, because it just came up with a lot of websites about people having sex with ghosts. So I cannot find the etymology of this middle English use of 'haunt' in the sexual sense.
PAUL BAE: You've just screwed up your Google ads logarithm by looking up succubus, haunting, "Why sex haunting?"
HZ: The things I do for this show.
PAUL BAE: Exactly.

IAN CHILLAG: Titivillus is the typo demon. I've certainly felt the effects of the demon Titivillus in my life. I've made typos. I had not, until I learned of Titivillus, known that I could blame those typos on a higher power or - is a demon or a lower power?

HZ: I think they originated when an archangel fell from heaven - Lucifer - ao I'd imagine if you're taking the conventional geography of heaven being high, then the demons would be low - but then a typing demon would probably be on the Earth's surface for maximum efficacy.

IAN CHILLAG: Well, Titivillus did - does, maybe - walk the Earth, and what he does is make scribes make errors. So a medieval scribe is doing their work, writing down what they have to in their text, probably a religious text; and Titivillus shows up and does whatever he does and suddenly there are typos in those texts.

HZ: And rather than ascribing that to medieval scribes having very tired hands due to the equipment that they use being exhausting to propel, and they were working in not the brightest light conditions, they were like, "No, it's demons."

IAN CHILLAG: Nope, it was Titivillus the typo demon.

HZ: We're talking about a demon that arrived on the scene of demonism in the 13th century.

IAN CHILLAG: Correct.

HZ: So when we say typos, we really mean handos.

IAN CHILLAG: Yeah yeah. The hando demon.