I live in the house built by my father-in-law’s brother. For decades, it was used as a dormitory for local high school students, and the graffiti they carved into the walls remains, which I enjoy reading. I once punched my way up into the attic and was startled by a giant 御幣 (gohei, a Shinto relic used for purification). Obviously, I let it be: it’s worked so far. - William