Has you dad's safety products made their way south to the U.S. yet? Like the electricians shoes or the convex mirrors? What side are the mirrors used on in Canada? Here in the U.S. they are only on the right, or passenger side. I'm not sure if they are convexed or concaved, to be honest I don't know the differance. On the left or drivers side a regular mirror is used on motor vehicles so you can tell the real distance of vehicles behind you.
How long ago did your day invent this new fangled mirror? Here in the U.S. I think we have been using them for a long time now.
Have you posted this diatribe on the Bicycling Love Forum yet?