We had five teenagers at home, at the same time for awhile (13 to 19). Pretty much chaos most of the time. Even if they took turns behaving for a few days at a time, somebody would be screwing up somehow, taking up the slack. On one really bad day I blurted out, "I hope you have kids just like you, cause I'm going to teach them everything you do, plus a few things you haven't thought of!" You know, that sunk in better than anything else I ever said or done. In spite of me, they have grown up, and are having families of their own. And yes, Grand kids are fun, and they learn quick too!!