In Japan, particularly online, you may come across the term DQN (dokyun). It’s a label reserved for those at the lowest order of intelligence and social graces and those who rank in the highest percentile for violence and general douchebag behavior.
Catching one of these creatures in their natural habitat of the streets is a rare but obnoxious treat. That’s why it’s awfully nice of them to record their own anti-social behavior so that we may study their ways in the comfort of our own home, and so the authorities can arrest and prosecute them all the more easily.
Take alleged DQN Tsuyoshi Nakamura for example, who along with some associates stands accused of harassing, threatening, and extorting from the entire staff of a FamilyMart convenience store in Ibaraki, Osaka. Nakamura is also under suspicion of forcing them to get on their knees and bow in apology, with the entire scene being uploaded to YouTube for all to see.