Only they’re getting even more drunk than before, on less booze, because their tolerance has plummeted. ‘I feel so pissed!’ they exclaim after a mouthful of Rioja, knocking over a vase. I never do Stoptober. It’s too drastic. Instead, I follow the 4:3 diet, which is like the 5:2 diet only with portion control replaced by alcohol control. Every week, I have four evenings off booze completely, followed by three evenings on, which means I spend 57.142857 per cent of the year sober, or, to put it another way, 42.857143 per cent of the year drunk.