Here's Luna, looking a bit like a drowned rat, peering in the living room window. The only thing is, the living room is on the second floor, and she is standing on the roof!
That's what happens when your deck has no railing, and the roof over the end of the garage is right off the end of the deck. And it just so happens that if you go up that roof and round to the front of the house, and over the top of the family room, you end up at the living room window!
And yes, she got let in, but through the door.
Only Smudge is priviledged enough to come in through the window.