When Mr. Blandings was right out of school he moved to Colorado for a year to ski. One of his go-to stories recounts standing in a ski lift line and the guy running it had his ball cap on sideways. Another guy standing in line said, "Dude, hat's on sideways." The lift operator paused and responded, "Dude, s'pose to be." Over the years it has become our code for pointing out something we feel the other person should recognize as painfully obvious. Eventually, all either of us needed to say was, "Dude."