A question to ask yourself on sunny days: are you, as you conduct your conversations with people, trying to convince them that you are Laurence Fishburne in The Matrix? You’re not? Then will you please take off your sunglasses?

Hardly anyone does these days. For whatever reason, it seems to have become acceptable over the past couple of years to engage in social intercourse with the upper half of your face entirely concealed behind several hundred quid’s worth of metal and glass.