It’s a dirty life

The homeless man is walking around the smoking corner of a downtown tall building, full of smokers. Nobody cares what he’s doing, or they pretend to. He bends over, collects all the bottoms of cigarettes. I see him doing the same thing almost everyday. The first time I saw that I felt bad, because when I step on my cigarette to put it out, it's like I’m stepping on someone’s mouth. I wonder if I should quit, stepping or smoking either one.