To save time (maybe 30 seconds?!) tomorrow morning, I've just measured out the oats for tomorrow's porridge into a saucepan and left them ready on the stove. In the morning I'll get the milk out of the fridge, add it, and cook the porridge.
DH has just come into the kitchen and said that the oats will go stale overnight and put a lid on the saucepan. I think he is insane and oats can't possibly go stale in ten hours. He thinks it's obvious that oats left not in an airtight container will suffer a major quality deterioration and doesn't see why I wouldn't have automatically put a lid on.
What's the Mumsnet verdict?!