The beggar of the metro

"I never really paid attention to him. I didn't have time. To avoid being late, I had to catch my metro at time. Why would I waste time for him? I worked as hard as a horse six days a week in a tiny supermarket that 90% of the population of the city didn't even know, and my salary could barely pay my bills at the end of the month! Why would I have to give him my money?"