I learned the reason for that. I drove back to my apt one evening, dropped off my Chinese wife (at the time,) and went to find a parking space. As I was walking toward the elevator lobby I saw a man and woman screaming at each other on the sidewalk. I don't speak Chinese, but walked up to them and told the man to leave the woman alone. He looked at me with a quizical look. I saw my wife laughing and asked her what was so funny. Seems the man was asking, loudy, for his wife to come back home and she was the aggressor, having hit him numerous times while I was parking, and wanting to leave.