There have been an increasing number of incidents ultimately caused by idiots putting suitcases wheels-down on the bus. Bus moves, case careers down the aisle, if it’s heavy it takes out a child. Twice in a week recently one company has needed ambulances to be called.

If people thought for just a second and put their case sideways, without all four wheels touching the floor, they would realise it would remain immobile. Most drivers near the airport happily allowed the wheelchair space to be used for this if not already occupied, but some are now sticking heavier to the rules given the above.