Oh man. The article mentions Germans might stare if you stand on the wrong side of the escalator. I did that my first day in Munich.

A little old lady nudged me and yelled "Lassen Sie mich vorbei!"

I turned and mumbled "Es tut mir leid!", and literally everyone on the escalator was staring at me.

That was like 13 years ago and I still think about it all the time.