vaudeville era magician presto digiotagione is famous for a hat trick wherein he pulls his rabbit alec azam out of his top hat. a hungry and irritated alec is locked in a cage, unable to reach his carrot. after presto returns from eating a meal, he begins practicing his act with alec, revealing that his top hat is magically connected to a wizard's hat kept backstage with alec. anything that passes into either hat will emerge from the other.