>The Society for Creative Anachronism, just to give one example,
>forbids any persona claiming any religious or supernatural "powers"
>whatsoever, including Catholic or Anglican priests, Asatru
>practitioners, and Pagans of all stripes from performing rituals of
>any type at an event.

And as for why, may I suggest this as a somewhat tongue-in-cheek explanation?

-- Bob
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My race is pacifist and does not believe in war. We kill only out of personal spite.