Chewie somehow got out of his pen. All I know is when I left, he was in his pen, and when I came back home an hour and a half later, he was sitting on my couch in the living room.
The pen is high - like 36". His crate is in the back corner against the wall. It had to be super difficult for him to "tight rope walk" around the edge enough to get free, but somehow he did it. And now I'm scared he'll do it again. I don't know what to do.