OK I am going crazy racking my brain. There is a country song that talks about a man that drives by and sees someone who has a flat he stops and helps them a they offer to pay them then the person who got help goes to a dinner and sees a pregnant waitress and leaves the waitress a big tip and then she goes home and the husband was the one who helped the first person.

Please if anyone knows the singer or name of the song that would be great... ;)

Chain of Love by Clay Walker.