Years ago, in the 1980s, my father was in a diner finishing his breakfast. Next to him was an older woman who ordered an egg sandwich.
When her egg sandwich arrived, he noticed as she discreetly cut the sandwich in half and folded one half into a paper napkin and pocketed it.
Probably, so she could have dinner later.
My father, a man of the streets, always carried an extra five dollar bill in his wallet. Just in case.
He retrieved the five dollar bill and hid it in his fist and bent down, pretending to pick it up off the floor.
"Excuse me, miss. You dropped this."
And, he placed the five dollar bill on her table.
The older lady looked at the money and then at my father and said, "Oh, no. That's not mine"
My father said "Well, it's not mine, either."
He got up and said "Have a nice day." And, left her with the five dollar bill.