@MontereyJack,
Hmmmm...they haven't tried doors like that yet.
I realised last night that Viola and I have developed the oddest game. She does her damndest to lick my nose, which I can't stand, and I do my best to block her....by blowing on her, turning my face, putting my finger on my nose etc. She very excitedly tries to avoid the blocks....including by grabbing my face in both paws and trying to hold it still.
It' actually like playing with a dog...indeed, we had that game with our childhood dog.
It goes on for ages....I swear she ends up giggling.