Hilary; When I said "yelled out like that" I meant the way Katie did in the segment. You said you'd watched it, so you should know. It's the mums (and dads) who don't bother getting up off their arse to talk to or discipline their children, instead they yell to catch their attention.
I would also like to say, I did not say anything against the working class. I have working class friends! They haven't got chav names though. Chav doesn't mean working class. But I would be incredibly surprised if Chardonnay, Charmaine or Chantel's mums were intelligent and enjoyable people. But that doesn't mean little Charmaine won't be a lovely and intelligent person.