Our most recent rescue, Agate the Cat, wishes to be outside desperately. He meows like a madman day and night and paws at the windows when I take the dog out for a potty break. With the weather warming up, I've taken Agate out on his kitty leash a few times, but now he wants even more to be outside.
This is a quieter moment of wishing to make the door disappear. You could also say he's helping with spring cleaning.