Jan, my old friend from my college days, had come to stay with us for a week. My twenty-two-year-old daughter, Kylie, looks forward to these annual visits from her honorary aunt. We only have two bedrooms, so Jan sleeps with me during her visits. It was Jan's first night with us, and we were enjoying a home-cooked dinner in celebration. Also joining us was Kylie's new boyfriend, Mike. It was his first overnight stay. The...