It's possible you haven't heard about the Unitarians who come to your door and make you an offer you can't understand -- but if you're rude to them they'll come back and burn a question mark on your lawn.
*snrk* poking through the comments sections on Making Light
, Teresa Nielsen Hayden's wonderful blog, and stumbled across that. Wanted to save it where I could find it again, so y'all get it.
(And yeah, I consider myself a Unitarian, which is part of why it's *funny*)