Because ds1, aged 8, has just yelled down the stairs "I hate you Mum".
And I yelled back up, "Do you? Oh dear, that makes me sad, get back into bed now, night night."
And came right back to Mumsnet.
But now I'm wondering if I should have done something different.
He's started saying "you hate me" when he doesn't get his own way, to which I reply "I love you." but this is the first (of many I suspect) proper screamed and shouted declaration of his hate for mean old me.
So what do you all do?