It's such a coincidence to see this on HN today. I was listening to a podcast about this very phenomenon yesterday (it was an old episode from exactly one year

It's such a coincidence to see this on HN today. I was listening to a podcast about this very phenomenon yesterday (it was an old episode from exactly one year ago, too). If anyone is intrigued, it's https://www.youtube.com/watch?v=PmvwGymptko https://www.youtube.com/watch?v=PmvwGymptko – they covered ten different "strange" causes of death, of which the dancing plague was one (and perhaps the least gruesome – the Byford Dolphin one was a real eye opener https://en.wikipedia.org/wiki/Byford_Dolphin https://en.wikipedia.org/wiki/Byford_Dolphin).