Ask Germans who lived under the German Democratic Republic what they feared most in those days, and they'll likely say the agents of the Ministry for State Security, best known as the Stasi. Ask those same Germans what they laughed at most in those days, and they may well give the same answer. As one of the most thoroughly repressive secret police forces in human history, the Stasi kept a close eye and a tight grip on East German society: as one oft-told joke goes, "Why do Stasi officers make such good taxi drivers? You get in the car and they already know your name and where you live." But this fearsome vigilance went hand-in-hand with technological limitation as well as plain ineptitude: "How can you tell that the Stasi has bugged your apartment?" another joke asks. "There's a new cabinet in it and a trailer with a generator in the street."
When the Stasi turned this kind of crude but intense scrutiny to certain aspects of life, the results almost satirized themselves. Take, for instance, this circa-1985 internal guide used to identify the "types of negative decadent youth cultures in the German Democratic Republic," posted on Twitter by musician and writer S. Alexander Reed and later translated into English by a few of his followers.