My 10yo daughter came home from school this afternoon with the wonderful news that some delightful little TWAT had spoiled the book for her (and the rest of the class)! This after several members of the class said very loudly that they did not want to hear or be spoiled.
I am ludicrously angry about this. Maybe because the same thing happened to her when OotP came out.
Moral of the story is, I guess, to make sure my daughter gets the next book read in the first couple of days like me.
My younger son hasn't been spoiled yet, so I'm off to read to him (this is the first of the HP books he's actually been keenly reading himself) so he can hopefully get it read before one of the little 'darlings' in his class decide to ruin it for everyone else!