THE SIMPSONS TRIVIA

[Superfluous Man]

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"Santa" in The Flying Hellfish episode. Burns busts through the wall in a cherry-picker to take away Grampa's key. He loses control and busts through the wall into Maggie's room, and she thinks he's Santa.

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For some reason I always thought this was Lisa. Though she's obviously too rational to believe in Santa, she a) can talk and b) could have been rudely awakened from a dream or something.