This one gave us a heart attack by spending the night out. I got up at the crack of dawn and her dinner was half eaten and she was nowhere to be found. I felt sick with worry. When I went onto the balcony off the bedroom for <30 seconds last night she must have sneaked out there. It got down pretty close to freezing last night so we couldn't figure out how her fur wasn't freezing cold when she came in. I thought I heard meowing in my sleep last night, but it was much fainter than when she's in the hallway.