Admittedly, things have got progressively worse through November and December. We’ll have to wait until the statisticians collect the relevant data for a clearer picture to emerge (assuming, that is, that they haven’t gone on strike too). Through December, however, we know that rail workers, nurses, ambulance workers, bus drivers, baggage handlers, the border force, driving examiners, traffic officers, teachers and Royal Mail workers have all, on occasion, withdrawn their labour. We’re on the brink of facing the worst collective industrial action since at least the late-Eighties.