This one is applicable especially to saeguks.
Communication is vital. Learn to Communicate important things BEFORE the things you suspect happen will happen…Rather than blame Fate afterwards. So many things could be avoided if people stopped being taciturn and did convey important information, like for instance who your father is, rather than allowing either some third persons spill the beans, in which case the hero almost always will rush to action, which is exactly why he or she hadn’t been told that earth-shattering piece of information in the first place. Will they ever learn? no…there would no drama otherwise, after all. But once they start, they never know when it’s time to stop that.
Aigoo! Dramas! 