This part made me laugh especially, but I'd recommend the post in its entirety.
And even if North Korea did attack, it's doubtful the hagwons would close. A friend of mine who owns a hagwon had once tried to close his school for the day, as a snowstorm had dropped a foot of snow on the ground in just two hours. Numerous parents had phoned to complain and shouted at him until he relented and reopened the school. Later that evening one of the parents was involved in a car accident driving her son to the hagwon. Thankfully, her injuries were minor and her son unharmed, but the feeling was that perhaps only the onset of nuclear war would see the closure of Korea's beloved hagwons.
Note: A hagwon, or academy in English, is essentially a school that focuses on a particular discipline so students can pursue intensive studies in that discipline beyond the basics that they learn in school. I teach at one of these.