Today, I drove past a frowning fat man in a yellow MTN vendor’s vest. He was pitching strips of rubber-sealed phone top-up cards in front of the Palace Hypermarket (what’s that?) on the Spintex Road. Nobody was buying his cards (which must explain his fat fart face). But what really stood him out in the pedlars’ queue was the little black metal bell in his right hand – a now-not-so-common selling aid. With tiny twitches of his wrist, his three-clang cadence compelled attention to his common cards.