Three Chinese (smugglers?) challenge the tolerance of the train passengers. Those three bitches (with large bags causing obstruction?) quarreled with a lady. They keep saying “X your mother” in high pitch. (I can feel how loud they are in front of the monitor. Indeed, I have the same experience everyday. The cross-border school kids run and yell on the train; and they like to make noise in the quiet compartment). They don’t shut up until a MTR staff has boarded on the train.