I had a neat experience a while back,
I was running the ditches near the house on my snowmobile and came across a car with a flat tire, turned around and pulled up to the drivers window.
I flipped up the visor and the little old lady rolled her window down a few inches- I asked her if she needed a hand, she thought a bit, then rolled her window down and said she had a flat, could I call a tow truck? I took off my helmet, told her I could change her tire.
As I was changing it, she told me her story, she was 4 hours late to dinner at her daughters house which was still 3 hours away........
When I was done she asked what she could pay me, I told her to help the next person she saw that needed help.
The very next weekend she posted a note at every gas station in the area looking for "the nice snowmobiler that changed her tire" so she could take him to lunch.
- I guess the message was lost on her, but I got a grin everytime I saw her note on a bulletin board.