A bank of escalators and stairs in central station.The escalator was broken, and the only way out of the airport was up a flight of stairs. I had a big suitcase and a sore knee.

I began dragging my bag and was making a loud thud on every step when a man behind me grabbed it and carried it to the top.

"That was so chivalrous," I gushed, thanking him.

"Chivalry had nothing to do with it," he said. "I've got a splitting headache."