I had a telephone number of a girl in Tianjin, so I thought I might as well spend the day in town before catching an evening train on to Beijing.
Sun Xyzia was out when I phoned, but she had spoken about me to her family, and her father invited me to their house.
"You must come back to my house to wait for Sun Xyzia. Have you had larnch yet?"
I hadn't, so accepted his offer; and with it the chance to snoop in Chinese living quarters.
Dr. Sun told me to stay where I was and he would come and get me, so that I didn't get lost.