I wear glasses, and, a few years ago, at a formal meal in an ancient castle, hosted by the Earl who owned the castle and fortified tower - think of the setting as something resembling a sort of intellectual Downton Abbey - your humble scribe mistook the salt for the sugar. Both were in fetching solid silver bowls - and, as I take organic, unrefined brown sugar at home - my bespectacled and sadly imperfect eyes were unable to distinguish between the contents of these two bowls where something very fine and white nestled within. Unfortunately, having spooned salt into my coffee, - and discreetly shoved the cup aside, I was quite mortified to have the Earl himself pick up - snatch up - that very cup some few minutes later, as he was offering a learned disquisition on something quite splendidly ancient and elegant objet d'art that adorned the walls.