[StargazyPi]

"completely harmless if you're more than a few inches away"

This was in the "disassemble for scraps" tent. I do not think that's a particularly reasonable thing to assume.

95% of the time, someone unscrews the housing, sees the radiation symbol, behaves appropriately. 5% of the time it goes in a garage junk box, gets dropped, kid finds the shiny yellow disc and tries to open it.

As it was, this was hilarious, and perfectly on-brand for EMF. I'm glad there's not a small nuclear source sitting in some unknowing person's hackspace, I'm glad someone was watching out, and them wearing cute animal ears makes the story even better!