On my way home from work this evening and I got a phone call from dd 19 distraught. She's gotten back from dog walk to find her bedroom wrecked. Ds15 has gone into her room while she was walking dog, and destroyed so many of her belongings. He's smashed the collection of snow globes she's collected since she was 6 from different countries, smashed all her perfumes, ripped up her certificates for her GCSEs and a levels, ripped some of her books and chucked anything and everything in her room to the floor. She told me he did this in retaliation to a massive argument they had prior to her walk.
I'm so shocked and angry over his behaviour. I've taken his phone and Xbox away and told him to stay in his room. I don't even know where to begin with his punishment. He's usually a good kid, never done something like this before.
I don't know what would be a reasonable and justifiable punishment for this. Yet to tell dh as he's away with work, but I know he'll go mad.