Rocky and boxes

I was a few seconds too late to get the picture I wanted. I had given Rocky a box yesterday morning. The first thing he did was chew an entrance hole so he could easily go inside. When I first saw him, he was completely inside the box. I'd called his name and he stuck his head up through the far right side top. Adorable!

By the time I got the camera, he was leaving the box in order to threaten me by banging his toys against the side of his cage: