It’s strange to confess that I’ve just had a relationship, a rather intimate one, with a person I don’t know. I’ve spent each night for the past week with this person, in bed, in the thirty minutes or so before I turn off the light. This is how we met. Bill, Natalie and I had flown from Los Angeles to San Francisco, where we were going on a couple of college tours. In between tours, we decided to spend two days exploring a favorite neighborhood, with fabulous old houses and panoramic views of the Bay. When we checked into our room at the Inn at the Presidio, we immediately…