What escalators tell you about people

It's cliche to say, "there are two kinds of people..." But you can sort folks by if they stand on the escalator or walk up it. Some of us just don't have the patience to be taken somewhere. And are annoyed by those who keep us from climbing by just standing in our way.

Getting plenty of time to ride escalators and moving sidewalks during 30 hour layover in Seoul's Inchon Airport. Nice place with lots of amenitiies, but still a long delay.