A group of not-so-merry pranksters in Greece called Rouvikonas (Rubicon) is happily trashing law offices, hassling utility workers, vandalizing embassies, and generally raising havoc. See an article about the group in Foreign Policy.
Generally speaking, Rouvikonas doesn’t physically harm people, even those they don’t like. Their main complaint is that elections in Greece are a farce, because whoever is elected, nothing changes. Does that sound vaguely akin to the movement that elected The Donald?
On the other hand, if you know Twentieth Century Greek history, Greeks acting unlawfully isn’t something new. They share a weakness for tax evasion and corruption with the other Europeans along the Mediterranean coast.