For some reason, our cats all like sitting in boxes. Cleo used to be passionate about them, although recently she's not done this so often. Sophia prefers bookcases, or beanbags, or - best of all, as Cyprus gets cooler - a bed.
But Tessie has started sitting in boxes in the past year or so. Here she is in a largish box that just happened to be sitting in my study a few weeks ago:
I don't think she was all that impressed with me taking photos of her, however:
Here she is more recently. Perhaps she saw CAT and SETTLE on the box, and thought it was an invitation...