I don't know if it has happened to you, but it has happened to me, and it's very rare. I was walking through the center of this my city thinking about pure nonsense, as I do most of the time, and perhaps a little happy, because after yesterday's rain the sun was shining brightly. yes, life was beautiful at the time. But lo and behold, when I cross the street I see - sitting in a telephone booth, with her hand resting against the glass, directing her gaze towards me, as if asking for help - a perfect stranger crying. Thousands of times I have looked at people I do not know and who perhaps will never meet, and that has not meant anything. But that crying, that look asking me for help ruined my morning. And I couldn't enjoy the day anymore and I felt like a perfect coward for not having entered the parlor to offer him help that would surely have been useless.