Mr. Wortle and Mr. Boomer try to use a Bohemian love potion called Shushkataniabopnik to get Morty to propose to Jill.; Winthrop wants to invent a flying machine. Morty helps.; Morty folds Winthrop's math homework into a paper airplane and has to chase it down, causing lots of damage in the process.; Morty gets a moose head stuck on his head.; Winthrop causes havoc at the zoo when Morty and Jill take him with them.; Morty is told to exercise, but over-does it.; Morty's shoes are ruined by an incompetent shoe-shiner.; Morty can't decide what to order at a restaurant.