Insight*

And, on the subject of reading material on trains (see below) and still on the evening in question, the train I boarded at Milton Keynes after spending a lovely evening with JJ drinking and eating had a very weird catalogue sitting on it when I took my seat.

Among the products on sale are a silver vertex distance guide, flippers, Maddox Phoria measure, face dot test panels, a red/green Lorgnette, a fixation ball, and amsler grid pad.

So what was the profession of the person sitting there before me?

*Joy Division