Aha I remember him talking about that problem in a talk at Google! He got that question in a screening interview for Google itself, and be got nerd-sniped :)

Aha I remember him talking about that problem in a talk at Google! He got that question in a screening interview for Google itself, and be got nerd-sniped :) Apparently he now this ks about it every time he uses public rest rooms. His xkcd talk at Google is we worth googling :)