I’d hoped that my tall blond companion might be a resident of the building himself. We could have continued our conversation, such as it was, right through the lobby and onto the elevator. But this was not to be. When it was clear that he was not going to turn from his eastward course I said, “Well, here’s where I get off. Hope that business in Connecticut works out for you.”

This ought to have puzzled him, as we hadn’t talked about any business in Connecticut or elsewhere, but perhaps he assumed I’d mistaken him for someone else. It hardly mattered. He kept on walking toward Mecca while I turned to my right (toward Brazil), gave the doorman a quick unfocused nod and smile, warbled a pleasant “Good evening” at a gray-haired woman with more than the traditional number of chins, chuckled unconvincingly when her Yorkie made snapping sounds at my heels, and strode purposefully onto the self-service elevator.

I rode to the fourth floor, poked around until I found the stairway, and walked down a flight. I almost always do this and I sometimes wonder why. I think someone must have done it in a movie once and I was evidently impressed, but it’s really a waste of time, especially when the elevator in question is self-service. The one thing it does is fix in your mind where the stairs are, should you later need them in a hurry, but you ought to be able to locate stairs without scampering up or down them.

On the third floor, I found my way to Apartment 311 at the front of the building. I stood for a moment, letting my ears do the walking, and then I gave the bell a thorough ring and waited thirty thoughtful seconds before ringing it again.