person A: I had to dog-watch my neighbors dogs this weekend. It was really easy_comma_ and I stayed at her house during the day since she was out of town_comma_ and it was peaceful and let me get work done. When she came back_comma_ she gave me $100! I would have done it for free. She's too nice.
person B: That was very nice of her. What did you do with the money?
person A: Haven't done anything with it yet. College semester starts_comma_ so I'll probably use it to buy one of my textbooks. And yeah_comma_ she totally didn't have to do that... I feel kind of bad_comma_ especially because of how easy it was to do.
person B: That is a good use of the 100 bucks. I am sure you will pay it forward at some point.