They are saying things like"No Vivienne, you don't like Marmite, it's too salty. It's yucky for you!"
And Vivienne replies, "No Jules, it's not picky for me." Then Jules hits her in the head and says"I need a time out!"
Constant madcap drama. Tears and laughter and forgiveness and happiness at a break-neck speed. People without kids see the constant drama and always ask"what just happened? What's wrong??" with aloof of alarm and concern. And the answer is always "nothing, it will be OK in teen seconds." These kids are mercurial. Their moods change very rapidly. They are mostly happy. Or over-tired and weepy.