In an area with a sizeable homeless population, I first came upon a man waiting with a cardboard sign at the top of the interstate exit. I see men begging at this intersection so often that I no longer see them.  But the guy behind me saw him. He rolled down the window of his truck and the beggar came over. Sheepishly the beggar took some folded bills from the man’s hand and nodded in gratitude before sauntering back to his corner.  I saw that exchange and it made me wonder. Should I have given him some money? It’s not like I’ve never done so. I’ve given money, bought burgers, and even given a few guys who looked needy and lost a ride.  And then I remembered. I don’t have any cash. So, I had nothing to give. About an hour later came a second opportunity. Pulling up to another intersection I saw a woman limping along the side of the road. She looked haggard. Disturbed. Her eyes fixed dead ahead as if the rest of the world didn’t exist. She sipped on one of those gigantic d...