So during college, I was visiting a small town, with my crappy car.
Of course, that means I broke down making a grocery run, and this old gentleman with worn out denim coveralls said he would call me a tow truck and have my car towed to the dealership.
Then I broke down because there was no way I had money for a tow let alone repairs. The old guy sat with me and calmed me down. He said the dealership was known to be reputable and would help me out of my jam.
Long story, but a couple days later I picked up my car and I went to pick up the car, having made arrangements to make payments.
They said there was no bill as Mr.Smith (not real name) had paid it. Then I realized the dealership was Smith Ford.
I Then went to get my car. Well they had totally detailed my car and even I could tell that I had new tires. I found a note on front seat saying pay it forward when I could.
They had done over 2,000 in repairs to a 500 dollar car. I can't even list everything they did. But new tires all around, new brakes, oil change, filled gas tank, just to start.
Edit: Many people have asked if I have paid it forward. My wife and I have indeed done so, in many different forms over the years. We have been blessed, and consciously pay it back when we can.