PDA (public displays of affection) are a well known bugbear of British people born before 1970, but there are plenty of other public displays that get us down even more.

For example...

1. Public display of mankles (men’s ankles) 

Just days ago it was announced that bare ankles have been banned from various gentleman’s clubs and the enclosure at Royal Ascot. What makes the mankle offensive – if it needs spelling out – is mainly context. Ankle baring in summer, with your rolled up chinos and espadrilles, is one thing, but with a suit, or any formal dress, it’s disturbing, like wearing a string vest under a tux.

Also there’s the question of hygiene: we cannot erase from our minds the image of half...