What are three useless facts about The Wizard of Oz?

Answer 1

One useless fact is the Wizard's putting a mixture of bran, needles, and pins in the head of the Scarecrow. He then explains, "Hereafter you will be a great man, for I have given you a lot of bran-new brains." The second useless fact is the Wizard's putting a sawdust-filled silk heart inside the Tin Woodman. He then comments, "[N]ow you have a heart that any man might be proud of." Hardly! The third useless fact is the Wizard's having the Cowardly Lion drink a liquid that he pours from a green bottle, into a green-gold dish. The Lion snffs it in the way that animals do when they don't like something. But he drinks all when the Wizard advises, "... courage is always inside one; so that this really cannot be called courage until you have swallowed it." After the three guinea pigs leave, the Wizard smirks over the just desserts to those who expect to be given what can't be done.