In "The Wizard of Oz", when the witch lights the scarecrow on fire, Dorothy grabs a huge jug of water that's handily hanging on the wall right next to her. Scarecrow fire is extinguished, but some witch-melting ensues.
My question: Didn't the witch know that water would melt her? If so, why did she have such handy jugs of it hanging on the hallway walls?
Thansk, Rich