There must exist a handbook that every trinket-selling person across the globe has a copy of, and this must be its title. I’ve heard it from hawkers in South America, Mexico, China, India (oh my god, India!) and now, all different parts of Africa. In some cases it’s the only English some of these guys know, but they say it proudly and repetitively, despite the smirk it always elicits from me. As if all their competitors give me bad price.