The UK imposed restrictions on holidaymakers returning from Spain on Saturday night in a bid to curb the surge in coronavirus infections.
No, not just to Spain. It creates uncertainty about everywhere. No one can plan now, can they?
And what’s the great enemy of an economy? Uncertainty.
It’s also going to be interesting as hell to see whether the system can cope with tens of thousands who might, just might, be of a mind to not wholly cooperate.