Attention-deficit disorders seem to abound in modern society, and we don't know the cause.
Know what to do if you feel faint or dizzy, especially if you might fall and hit your head.
Know how and how much to tip people who expect gratuities, even in the case of poor service.
Be able to recognize when you're reading or hearing material biased to your own side.
Be able to sneeze without sounding ridiculous. That means neither stifling yourself or spraying your immediate vicinity.
Know how your representatives stand on major national or state issues.
Scientists and creationists are always at odds, of course.
Know what happens when an individual declares bankruptcy and how it affects his or her life.
Be able to back up a car for a considerable distance in a straight line and back out of a driveway.
Know about the appeals process, especially in the case of the most serious crimes.
Know how to behave at a fine restaurant, which is a telltale measure of social maturity.
