What is the word?

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So, back when I had a bunch of cats I put up what I call "gates" in the house. These are heavy screen doors that don't really keep out bugs, but if you put a deadbolt on them, they can be security doors. I have one on the front and back door (with deadbolts) one on what was Viv's room and is now mine, it also has a deadbolt from back when she had the work computer in here, and between the front room and over the hall entrance. So, this is the gate I want to talk about. Cleo, the younger dog, likes the 'snack' in the cat boxes (ewww) so we 'crate' her in the hallway at night or when the weather is bad enough during the day. It is also the way to the roommate's bedroom. Now, she works from 3-12 midnight, so she's mostly a day sleeper. She moved in at the end of July 2018. Labor Day weekend Viv was depressed so we went to the animal shelter and came home with an orange kitten I fell in love with named Boris. The roommate got up and Boris was all up on her. "You're new," she said. "I go to sleep and wake up to orange kittens." (This is true, her former roommate took in 3 10 day old kittens a few years before.) I told her that he was mine. Well, you know cats... he decided she was his... She protested, but she really didn't mean it. She started to call him "Sixteen," since we had 15 cats already, but she realized that we would probably be back down to 15 before the end of the month - and we were. Now, Boris maybe an orange guy, but he has the voice and vocal attributes of a Siamese. If he wants something, he'll ask for it. However, if she is going to bed, she doesn't want him in the hallway, not in the least because Cleo is more than a bit protective of her 'crate.' During the day, I don't want him in the hall because he goes over to her door and wakes her up. She started with: "No! Get in the kitty hole." This is a hole in the big cabinet we built by the hallway that we can put the recycling bin in, it is behind the gate when you open it. So, I'm running to the bathroom this morning and Boris gets there first. I say: "No Boris! Get in the kitty hole," and he does. So... is it "No" that gets him in there? Or: "Get in"? or "kitty hole"? What is the magic word(s)? What do you think?