The sunset was Armageddonesque – a blend of arterial red and searing yellow that, in a painting would look kitsch, but where it belongs in the sky, was breathtaking. These vibrant skies were not unusual for Johannesburg though, some say the air pollution is good for one thing at least. But the riot of colour was an apt mantle for the violent crime which was part and parcel of life for the six million citizens in the city.

“Ag sorry Abi, not much of a walk I’m afraid.&rd...