am I really mean minded

I was getting late to office(Which is a daily routine) and the local buses were out of sight. It happens especially at the time when I should have to be on my desk. Finally I was thinking to get an auto and reach office with being minimal late. Suddenly I saw that one lady and one girl(not very charming) were negotiating with auto ricksaw driver for fare. Without delay I approached and asked If I could share the same auto. They said ok and finally we moved for our destination. The girl was sitting next to me and since she was not charming I was more interested on road scene. After some time I saw that the girl was giving some money to that lady because she had to get down in middle. They talked in thier regional language, only thing I understood that lady told that she will pay the money. Girl got down and I was thinking that I am not going to share her fare. Lady has refused to take money so let him to pay for that girl also.

For convincing myself thoroughly my philosphical mind started giving the reasons in support of what I was thinking. I got convinced that if I will keep giving fare of every person who is in the same auto then I will have to beg very soon. My mind raised questions over girls conscience also that even if ladies offered her fare then she should not have accepted. While thinking these reasons I prepared myself for argument with the lady and took out only 10 rupees from my purse. I was just waiting for her to ask me for money but she directly gave 50 Rs to driver and said him to take the whole fare. Although I was not prepared for this response(rare) but immediately I given my share of money to her and got down from the auto. I am still ashamed on my thought and mean mindedness.