Together with not having to do a rolling maul at the pub bar to get a pint, this staggered disembarkation is one of the best things to come out of Covid and I well and truly hope that it remains forever.

It's not for nothing that in Japan, where they know a thing or two about boarding and getting off trains efficiently, they draw those parallel lines along platforms for commuters to line up to while waiting to board. Supremely civilised, orderly and actually faster than the scrum for the aisle.