Gasoline for the Soul

Last week I was putting gas in my car and a homeless man approached me. He asked me for money and I gave it to him. I felt sorry for him because it was cold and it seems that he doesn't have a home where he can warm up. Two minutes later, another man did the same. This one looked stronger and healthier than the one before. I did the same, but even that I felt good about my actions, there was something that bothered me. How is it possible for so many people being alone in a cold dark night? Where they really in need or they were taking advantage of people and have some other purpose for that money? Anyways, I did what I was suppose to do and still feeling good about it.