I wonder if I should ask him about Robertson (square)screw heads versus Phillips (star or X) screw heads or will I dredge-up the Canadian versus US war? It rem

I wonder if I should ask him about Robertson (square)screw heads versus Phillips (star or X) screw heads or will I dredge-up the Canadian versus US war? It reminds me of Shelbyville turnips versus Springfiled lemons.