Joel invents a pipe with a smoke detector and a sprinkler system built in for the invention exchange. The guys watch "Untamed Youth (1957)," a 1950s teen flick about youths sentenced to manual labor at a cotton farm.
Joel kicks off the invention exchange with the "never-light" pipe, which is designed to prevent smoking. The Mads, meanwhile, introduce tongue puppets. Then Joel and the 'bots endure the 1957 youth-gone-wild drama called "Untamed Youth" starring Mamie Van Doren as a wayward teenager sentenced to 30 days on a cotton farm for skinny dipping.—Jerry Roberts