He didn’t check if he had all the ingredients for a dish he was making & was halfway through. So he was off to the shop & I told him he had left the hob on. He got annoyed when I turned it off, saying he would have to heat it up again when he got back! It’s not a bloody oven! He could have been 15mins going to the shop by which time it would be super hot, plus it’s a waste of electricity!