I did, I was going on six, and we lived in a nice neighborhood of rowhouses. And one of the neighbors across the way had a Santa come to their house, and I saw him from my bedroom window. It was late, there were streetlights. I got under the covers so fast I'm surprised they didn't catch fire.
My mom was trying to persuade me to stay in bed and go to sleep, so she was there to see this, and the story came back to haunt me at family gatherings for years. I actually remember it, probably because of all the family hilarity about it.
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"I believe you find life such a problem because you think there are the good people and the bad people," said the man. "You're wrong, of course. There are, always and only, the bad people, but some of them are on opposite sides."
-- Terry Pratchett, Guards! Guards!