"And there's a cop over there." "What?" the boy said, glancing at the D.C. police officer that stood at the corner of the street, "You think that guys can do a better job protecting you than I can?" Actually, I thought Liz could have done a better job "protecting" me than he could, but instead I said, "No, I think if you don't leave me alone, I can scream and that cop will arrest you." Somehow the boy seemed to know it was a joke."