“I’ll pay you back when I’m grown up,” the little girl begged — holding her baby brother in her arms, desperate for just a small box of milk. What the millionaire did next surprised everyone who witnessed it. On a hot afternoon in downtown Chicago, crowds rushed past without noticing the small girl sitting on the grocery store steps. Her clothes were worn, her hair messy from the wind, and her baby brother lay wrapped in an old blanket, crying softly from hunger. People walked by, glued to their