On misbehaviour

Once she told me I had the job, my future Head of Department said that what made her mind up about me was how I had handled misbehaviour during my interview lesson.
I wanted to burst out laughing.
One kid turned around to speak to a friend a couple of times and another one wrote a note, then apologetically handed the note over to me. That’s nothing.
Try this: you have two of them punching the crap out of each other, one of them running around the classroom with someone else’s bag, that someone else following them trying to retrieve the said bag, four or five of them just carelessly walking around socialising with their friends, a couple listening to music on their phones/i-pods and a couple more shouting invectives out of the window. And then telling you to get out of their face when you try to get their attention.
That’s misbehaviour.
Even if the behaviour is in general three times worse than it was in my interview lesson, it’s going to be a friggin’ holiday.