My boyfriend, Bill, and I are dedicated gymgoers. We work out several times a week and prefer doing it late, as the gym is less crowded. At 10:30 one Friday evening, we finished our workout. As usual, hardly anybody else was there at that hour. I told Bill I wanted to spend some time in the ladies’ sauna before we left. He didn’t want to wait. To induce him, I said I’d sneak him into the sauna in the women’s locker room....