As we were walking home, my parents were sharing about their day in the city. They had gone to MOMA, then to the Asian Art Museum. And they had walked from museum to museum, which was quite a long distance. “Why didn’t you take BART, like I suggested?” I asked them. At which point the homeless man walking beside us said, “It’s not safe to take BART at night.” I nodded and said, “Oh, but this was during the day today.” He nodded, pleased that we were safety conscious.