The Alternative Highway Code.
For the purposes of this piece I will henceforth refer to the Doughnut as the Donut. I choose an American English spelling because I really do hope that this most futile of driving manoeuvres was not invented in the UK. I don’t relish the shame of inventing the Donut being shouldered by America, I just don’t want it to be shouldered by my country. Historically it seems unlikely, since it is not easy to perform in a Ford Anglia, but much easier in a Chevrolet that your Dad has ticked the big V8 option on. The name, of course, is imprecise. An Edible Donut is a Torus, a three dimensional shape. The shape defined by the Driving Donut occupies only two dimensions and is, more or less, circular – just a big zero.
Driven To Write 