The scenes often take place in public and in broad daylight, and remember that this is an Internet thing: The unsuspecting denizens of meatspace have no idea what's going on, or that some people on some forum somewhere said, "OK, this time we're all going to get naked in a bathtub in the middle of the street."
All in all, it's a fine hobby.
This is therefore one of the few Internet memes in the world that has the capacity to lead to federal charges, international incidents or flat-out War of the Worlds style riots for fear of a zombie outbreak.
These aren't staged. This is just how the Russian mob settles its debts.