Via NPR, this StoryCorps story about Julio Diaz, who was getting off a subway in the Bronx when a teenage boy approached and pulled a knife:

“He wants my money, so I just gave him my wallet and told him, ‘Here you go,'” Diaz says.

As the teen began to walk away, Diaz told him, “Hey, wait a minute. You forgot something. If you’re going to be robbing people for the rest of the night, you might as well take my coat to keep you warm.”

There’s much more to the story. Have a listen/