some nights we have a bit of a tea time rush. I have to leave to pick dd2 up at 7.30, we get back at 8.30, and then we have dinner. I get dinner as ready as possible before i leave - but there's always at least 10 minutes while, for example, the rice and veg cook - making an already late dinner even later. dd1 -age 11/y7 (who stays at home while I pick up dd2) suggested I leave her instructions to turn things on and have it ready when we walk in the door at 8.30. I'm quite laid back in many respects - but boiling water and gas hobs (without adults present) worry me. It was great of her to offer and I know she'll be insulted if I basically say I can't trust her. what do you think?