Jindos is a great breed with the proper training. I would say this incident could be cultural as Jindos are allowed to walk around Korea without a leash, but I have to say it's not because people had talked to the owner, which means that the owners are being irresponsible. In Korea there have been problems of Jindos attacking other pets but there have been no recoeded incidents of the dogs attacking humans. Studies suggest that it seems to be a territorial behavior, which with proper training the dogs can be well behaved. Any dog can be violent without the proper handling and care. I've seen through experience violent golden retrievers and even violent poodles over the years and much of the problems is the lck of knowledge of how to handle different dog breeds. In fact I not only seen violent dogs that are known to be well behaved, but dogs like Chow Chow and pitbulls that have never barked or jumped at a person and sadly these dogs are on the opposite ends of the spectrum considered sadly by many misinformed people to all be violent and vicious.