Boo! Sam Arnold, culinary cutup and owner of The Fort, has been scaring diners for several years now with his annual Awful Offal dinner, a Halloween feast whose multiple courses feature many of the byproducts of butchering an animal. Talk about frightening: The lineup includes buffalo tongue, Rocky Mountain oysters (that's bull's balls to you), lamb brains, sweetbreads (the thymus gland), broiled kidneys and calf's liver. You'd think they'd have to pay you to eat this stuff, but the $50 per person event always sells out. Cat got your tongue? Arnold might serve it to you next October.