One impulse, one decision, one gamble can change your life forever. A stranger opens your door. You exchange a glance across a busy room. You answer a wrong number. And suddenly your life is entwined with someone else's. Your paths have crossed, and you are connected to another human being. What if that person stays in your life? What if that relationship is still important to you in ten, twenty, fifty years? You could meet that person today.Luckily...