Haha. Funny in that my wife is opposite. She has no issue getting in people's faces about stuff.
I think what you may find Prag is that what neighbors do on their side of the wall is hard to dispute. I asked my wife a few moments ago and she said that it's a headache. Only sure angle is their trees leaned up against it and knocked it over or cracked it. The rules about how much landfill a neighbor can add is not legally determined.
For me I know us westerners believe their neighbor will be respectful and courteous but that doesn't always work.