Krystal D'Costa mulls elevator etiquette. Why it's necessary:

There are an estimated 900,000 elevators in the United States, each serving an average of 20,000 people per year (1). That means approximately 18 billion elevator rides are taken every year. With 310,622,223 people in the United States, that amounts to about 58 elevator rides per person per year (2). That number is likely to be far higher if you live in an urban area where elevators are an integral aspect of residential and commercial buildings. 

Let's hope you don't get in one with this commenter:

I do like to stand with my back to the door (blocking the only exit) it freaks people out on some level.

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