An Addendum

[jsburbidge]

I noted that no place I had been in had implemented one-way aisles. That is now no longer true; the Loblaws I was shopping in this afternoon had put down arrows in tape on the floors of the aisles. Except... nobody, as far as I could see, was paying them any attention. Or not enough to make the necessary number of people going in the way indicated significantly larger than I would expect at random.