I took an elevator up to the eleventh floor for a meeting. As I got out, the operator said "Have a good day, son."
"Don't call me son," I said. "You're not my dad."

He scratched his head, "No, but I brought you up, didn't I?"

After my meeting, I got back on the elevator to go back down, and the same operator was there. I said nothing to him, but when we got to the ground floor, he said to me, "I'm sorry."

"Because you thought you were my dad?" I asked him.

He shook his head. "No, son, because I let you down."

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