What’s the protocol they’re used to?
if the man or woman behind the counter looks at you then it’s your turn. regardless of where you are, be it the bakery, the butchers or at the post office.
oddly they don’t go to the bar to get a drink. 99% of the time you have a waiter or waitress. you only sit at the bar if you are a local or a drunk (often the same thing).
i’ve upset a number of people pointing out to them that they were not the first person standing there.
and the most that most people do if someone pushes in front of them is tut and mumble under their breath.
i get surprised if someone says “nein, er war vorher da”