What $47.00 means

I get to the check out line and this lady a couple shoppers in front of me was giving the clerk bloody hell. Then she called the manager over. Then I start looking at my watch thinking I'm going to be late for my nanny. Then they start yelling and she is saying her food stamps expired and will have to put everything away. The lady was really visibly upset saying its a mistake call them up the number. The manager was saying no can do its right. 

At this point I been in line for over 20 minutes and i felt really bad. I look in her cart I see kid stuff and thought to myself what if that was someone I know or even me. 

So I went to the register and said to the lady who had tears in her eyes hey I will pay. I told her it's a treat and its on me. She looked at me like I had 3 heads and then tears fell. She said no one has ever been so kind and I helped her provide for her family. I just said your a great mother and don't worry. She hugged me and we went on our ways. I actually got a warm gooey feeling inside. I never knew 47.00 meant the world to someone. Please do good deeds ladies.