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xkcd #3126: Disclaimer
(imgs.xkcd.com)
A community for a webcomic of romance, sarcasm, math, and language.
Throw them into a lake, I guess. If they sink and drown, they're innocent. If they float, you know they're full of (buoyant) shit (and can then safely burn them at the stake if you want to).
Ah, welcome back, Witch Test..