'For more than two years now I have been receiving welcome phone calls from a woman, whom I barely know, with an attractive voice. After some polite preliminaries, she asks me a lot of personal, anatomical questions—the sort one’s partner would likely also be able to answer for her. My responses to her enquiries are in no way shielded; in fact, I have been unabashedly open with her. We have a few laughs. No longer. These quarterly exchanges have now come to an end. Though I could take some comfort in knowing she’ll give me another pre-arranged call in about a distant six months’ time, as is the routine.' (Introduction)