The "star", Georgia, claimed to be the only one of her 4 sisters to reach the end of Year 11, so it's unlikely that shame and squirming are concepts understood in her home, espeically hearing her telling her mother on the phone about the initial fight she provoked with Jac, the bleep would have been on overtime had it been used.
Schools have little in the way of sanctions these days, even a raised voice is deemed abusive by some.
The Year 11 Prom is used to try and control behaviour in the last year, but I recall a doting Mam lying on the road in front of the coach to try and stop it moving. The staff were prayiing that the clutch would slip