I heard the story of a blind girl who sold costume jewelry in a busy airport. Someone running to catch a plane bumped into her stand and knocked everything over and scattered jewelry everywhere.
Overwhelmed at trying to gather everything back up she began to cry in frustration.
Seeing her plight, a man cam and put his arm around her and calmed her and proceeded to put her display back together.
When finished, he took out his wallet and gave her a sizeable bill for time lost and some jewelry that was broken.