I hope it stops being fun before too long.
This morning he was outside, then wanted back in. Nothing wrong with that. But he did it twice.
He would go to the garage, out the cat door, around to the sliding glass door and meow to get back in. I realized he was going out the cat door when none of the sliders were open. I asked Brian if he'd let him out and he told me he hadn't. So, Mario let himself out.
Why didn't he let himself back in? He stood at the door meowing.