Ds 1 is 13. He is quiet and quite introverted. He's the eldest of 3 and they've all been driving us mad recently with bickering and appalling manners, especially at the dinner table. Tonight he went to his piano lesson and DH was outside listening. He said Ds was really cheeky and disinterested and just a disgrace really. I consider myself quite strict generally and am forever pulling them up on their manners. I don't really know why he thinks that's a reasonable way to behave.
He was punished, he went straight to bed and lost his pocket money for this week.