Apparently, people who are “sweet” should stay out of the rain. They’re so sweet because they must be made of sugar. Water melts sugar. So sweet people melt in the rain or when otherwise wet.
But then how come the Wicked Witch of the West melted when water got sprinkled on her? She wasn’t sweet… or was she?
Now that I think about it, maybe the Wizard, Munchkins, and Witch of the North weren’t as “good” as we might believe. Maybe the Wicked Witches of East and West were actually the good ones. Is it out of prejudice for green-skinned women that they are dubbed evil?
Or is it because the Witch of the West kept trying to kill Dorothy?
Then again, that’s not a mystery. If you crushed my sister with a house, I’d want to beat you to a pulp, too!