Somehow, last night, as we opened and closed the back door, our indoor cat "escaped". She spent the night outside before we discovered her absence. We've seen her a few times today, but she is very frightened of all of the noises and dogs in the neighborhood and only runs away, so she is still at large. This is the first time she's spent more than a few minutes outside (and we're closing in on 24 hours). I pray she comes home soon.