Writing her little notes turns out to be a more effective way of communicating with my mother than shouting. Now every time she asks me what the headline in the Daily Telegraph means I just pass her the piece of paper which says, NO THIRD RUNWAY AT HEATHROW.
And then, for no obvious reason, my mother's hearing came back around lunchtime today- and is now as good as it was before. We've just had a more than usually long exchange- which included a joke of sorts- and she heard it all.