Kitty, I know...
That you and I now share a room. I know that you used to have much more room available to you. I know that you're fascinated with the goings-on in the yard outside. I know that you'd love to run around and play and explore. I, too, would just love to own a house where we'd both have more than enough space. Really.
And I don't like the fact that, when I opened the window a crack last night, you pushed your way out of it and hopped onto the railing of the balcony next door. It was the middle of the night, and we are well above the level of the ground. Yes, I know you can see in the dark. I don't care. I'm not about to watch you discover the force of gravity for yourself.
Another thing I don't like? The fact that, when I called you, you just stared at me and didn't move until I poured food into your dish (which was already full). I'm very glad you came in to eat it, so I could close the window.
So, if we're stifling in the heat here, just remember why.