My friends had a pointless argument over "The Wizard of Oz" the other day! Normally, the pointless argument I hear about that movie is whether or not it's an extensive metaphor for World War Two or the Great Depression or something. It's not. The book was written in 1900; therefore, the author was not lampooning events which happened decades later.
No, this argument was over Glinda. She asks Dorothy, "Are you a good witch or a bad witch?", later adding "only bad witches are ugly".
The first person says this is an insult, suggesting that Dorothy is ugly. Dorothy is clearly pretty, and since bad witches are ugly, Dorothy can't be a bad witch. Why would Glinda ask that question.
The second person says "only bad witches are ugly" does not mean "if you are a bad witch, you are ugly"; it means "if you are an ugly witch, you are bad". It is possible for there to be a bad witch who is incredibly gorgeous. That doesn't contradict the statement "only bad witches are ugly". Glinda's statement is about all ugly witches, not about all bad witches.
Who wins the argument? Should we go back in time and correct the movie script, to make it more clear? Do my friends have too much free time?