Passenger cooperation at its outer limits
A 30-ish guys boards and sits next to another guy on a train with other empty seats. He shares his hip-hop magazine with his seatmate. And his seatmate shares his knowledge of a diamond bracelet he was selling.
Meanwhile, in the seat in front of these gentlemen, a woman was preening her 9-year-old son. Mainly she was concerned about the cold sore on his lip. The guy with the magazine, recognizing mom's distress, whipped out his tube of "extra-strength" Carmex. He squeezed out a line on his finger and shared it with the woman.
Gratefully, she applied it to her son's swollen lip.
Now THAT'S passenger cooperation.