SAN NARCISO, Calif. -- Attorneys representing People for the Ethical Treatment of Animals (PETA) filed a cease and desist order today against the Fox Broadcasting Company and Seth MacFarlane, creator of the animated comedy “Family Guy.” The order follows last night’s Christmas special, where in one scene carnivorous reindeer feast on the flesh of Santa’s inbred elves. Later in the episode, the reindeer, deprived of elf flesh, soon turn to cannibalism and devour each other, leaving a bloody but cartoonish trail of carnage to litter the ground of the show’s fictional New England suburb.