answer:I have no idea (and am deeply interested in finding out), but in the spirit of Halloween this reminded me of something that happened a couple years ago: I was sitting on a bench at my university taking observation notes in my Moleskine on Halloween when someone approached. They shouted “Roar!” and when I looked up, there was a giant Domo-kun. They waved their stubby arms at their side and promptly walked away without a word. It is, to this day, one of the stranger things that has happened to me at school.