On my recent visit to San Francisco I took a wrong turn and found myself at Twin Peaks, where I took this photo. I lived several years in SF, but had never seen this particular view while there. As extraordinary as this sight is, I saw something more exceptional. I was parked at a red light. A tiny elderly woman, bent nearly in half, entered the crosswalk from my left, on the opposite side of the street. A tall young man in shorts and a tank top entered the crosswalk in front of me, from my right. He abruptly crossed the intersection to the opposite crosswalk, and offered his hand to the old woman. She took his hand without raising her head. They walked hand in hand to the corner.