Tonight I went to take the dog for a walk, and made the mistake of walking her right past Gizmo's window. The poor little guy started to wail and howl since she was getting a walk and he wasn't. Poor little guy; I really wish I could've taken him with me. He needs the exercise, and it was a lovely evening.
When we got back, he "wasn't speaking" to me. Every time I'd go to talk to him, he'd squeal and run into his play-tunnel. He kept that up until it was time for his dinner, then suddenly he was all friendly again.