After a recent discussion, in which I think we can all agree, that everyone should at least know which places on the map our continents and which are countries, by the time they graduate ^_^, I thought I might pose people a question of their own faulting.
What is something that you should know, that everyone else (at least in your field) around you know, but just don't?
To take an example from one of my grandfathers odd ball thoughts, if you've been driving for years, you should know that the NO sign with the P in the centre, means no parking - not no peeing here.
Something that I should have learned like everyone else, but somehow never did, is how to tie a bow. I can't tie a bow to save my life, be it shoe laces or packaging a gift. In fact, my shoe laces are usually tied with knots designed for joining two peaces of rope together, which will make for a snide remark, should I ever turn up at the morgue with footwear still attached \o/. But hey, as long as it's not on me tomb stone... lol.