My absolute favorite type of panic and confusion

Good observation. It's funny how a bunch of people can suddenly snap out of their semi conscious states when there's a disruption to the routine. As you say, when you expect to go left and you go right instead, alarm bells start ringing.

Oh you would love NYC buses at rush hour. They're full of coarse mannered idiots bickering over seats and "tough" guys with fragile egos who can't handle being jostled. Yesterday it was standing room only and this large dude was stood right next to one of the back doors playing Candy Crush on his iPad. The long handles on the doors are touch sensitive and open them at stops. At every stop, after the doors had closed, he would lean against the handles and the doors would open on him, causing him to yell "who's doing that? I swear to God...is that the **** driver? What an ****!" It happened at every stop and each time he got angrier. Nobody had the heart to tell him he was an idiot. I was sorely tempted.