When Toronto artist John Coburn prepared to ship a half-dozen of his paintings to London for an important exhibition, he took no chances. Coburn carefully sealed the paintings in a plywood crate, and sent them via a globally respected courier. The crate arrived in London in plenty of time, at which point the Brits realized that they had no idea how to open the damn thing. “The screws used to fasten the crate were Robertson square drives — a circular screw with a recessed square made to receive a matching hand driver. Quite common in Canada, the make is all but unheard of across the pond.” Informed of the problem, Coburn had just enough time to pocket the correct screwdriver before leaving Canada.