There are people who’re happy to wear black till science comes up with an even darker colour. Due to the nature of my resting face, however, I’m not one of them. If I were to walk out onto the street dressed like Johnny Cash, anyone I happened to meet could be forgiven for thinking that someone had died. It’s interesting that the early portraits of Darwin show him brooding – probably about Natural Selection. Not that my resting face portends my coming up with a theory as game-changing as Evolution. But Chaz was a native of my hometown. Maybe it’s something in the water.