He recounts the tactics of people who don’t really come to buy coffee, who for instance just pour themselves a little cardboard jug of milk, or collect handfuls of sugar sachets. Or who in the chaos of rush hour make off with someone else’s coffee from the collection counter. “One woman did it daily. So I ran after her one day. When I grabbed her by the shoulder, she was shit scared. But I shook her hand, told her, ‘Congratulations! I admire you!’ She never came back.”