Cast member Scott Grimes, co-creators Mike Barker, Matt Weitzman and Seth MacFarlane BEVERLY HILLS, CA–Ho-ho-no! Hide the kids! Elves are slaughtered like baby seals in a not-so-festive scene coming up this season on American Dad. Critics got a sneak peak at “For Whom the Sleigh Bell Tolls” at the end of a lunch time table read Monday at