The latest ploy is to use the EU and its ongoing vengefulness over Brexit to decree that Spain should take over all border controls. So time for us once again to roll out the actual text of the Treaty of Utrecht of 1715, which conceded the Rock to us in perpetuity.
At the time it had one inhabitant, a lone Spanish fisherman who left. Ever since, whenever Spain has had an internal problem like Catalan’s lust for independence, up pops Gibraltar as a diversionary tactic.
For the record, Gibraltarians are not even Spanish or Spain-descended. Their ancestors came from all over the Mediterranean.
They are fiercely loyal to old Blighty and the Rock prospers to the point that 30,000 Spaniards come in every morning to work there and much appreciate the salaries. So the constant complaining comes only from Madrid.
If we are going to start rewriting solemn old treaties, we could respond by encouraging Morocco to claim back the two Spanish enclaves on her coast, Ceuta and Melilla, for whose Spanish ownership there is far less justification.
One might hope that the EU would have got over Brexit by now but the bad temper – as the nightmare of rules wrecking peaceful trade with Northern Ireland shows – just goes on and on. Would a large banner with the words, in Spanish, “For Pete’s sake grow up” help in any way? Alas, almost certainly not.