Why was it shut yesterday?

The puppies love to have the doors open in all weathers. In order to give them something of what they wanted, we built the conservatory. Problem solved, we thought - one door open, one shut; and the house can be kept warm on a cold day.

Yesterday's blip showed that it does not always work in this respect.

Today is a little warmer. I find it perfectly comfortable (for now) to have the doors open.

But Molly seems to be telling me that this is how it should always be! "Just you remember that in future."