Please, tell me : A professor raised the hypothesis of a human or primal "behavior" ??? But which behavior he's talking about? "인간의 다섯가지 행동 유형 중 소란행동이란 게 있습니다" "One of the five human behaviors, is the disturbance behavior." ...? WTH he's talking about? Please, tell me, do you know the other four? Thank you. It comes from Children... (아이들... - 2011) Directed by Lee Kyoo-man Distributor : Lotte Entertainment.