Right on. There is another level of nuance in the joke though. You need to have had spent some time in a Eastern European country. Everyone is a stickler for r

Right on. There is another level of nuance in the joke though. You need to have had spent some time in a Eastern European country. Everyone is a stickler for rules, details, and knowing the "correct" answer, even if in practice, in a given situation, it makes no difference at all. This joke brings out that quality very nicely.