Over the next week, it just got worse. Two or three times a day I’d be deep in thought, trying to focus on this tangled plotting that I needed to resolve, and some woman would tap me on the shoulder to offer me a cup of coffee. I couldn’t concentrate, because sometimes they were very insistent: “You sure you don’t want a coffee, sweetie?” they’d ask, sometimes lurking over me after I’d refused them, just in case I changed my mind. Sometimes they just bought the coffee for me anyway, without even asking me ...