Yesterday an old bum in McDonalds asked me to buy him a burger just as I was sitting down to eat. I said no. Now I feel bad

I dont really have it to give away. I made no money last year and I am out of work. I had just bought a $5 meal because that was all I could really afford. I was probably closer to being in his shoes than it looked. I still felt bad the next day. I used to buy food for anyone who asked me when I had a 6 figure job living in LA. I just dont have it like that anymore.