Will Brexit make Valentine’s Day flowers less expensive?

Any florist will recognise the look of furtive shame, the shifty hangdog look which announces that an Englishman is about to buy flowers. Some of them try to make it easier for you. I used to go to a splendid florist in Ealing who talked to me about rugby for no less than five minutes each visit. But most florists are more interested in flowers than people, and let it show.

For some reason, you’re never allowed to write the card yourself. You have to dictate it, endearments and private jokes and all, while a couple of women who remind you of your mother lurk in the background. My colleague Rory Sutherland believes that this is the point, that buying flowers is something men don’t like doing, so it is a mild human sacrifice which signals intent, a commitment device.

This would also explain why flowers are expensive — signalling is ineffective unless it is costly — especially around St Valentine’s Day.