Season 3, Episode 15 - "Dorothy's New Friend"
Back in St. Olaf, Rose had a neighbor named Mean Old Lady Hickenlooper, who always looked angry and never smiled because she was born without smiling muscles. Rose told her that a smile is just an upside-down frown. What did Mean Old Lady Hickenlooper do every time Rose passed by?
She stood on her head and waved.
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