I feel like he doesn't usually have a client right before me. One week I saw him coming back from a walk with his wife while I was sitting in my car waiting for session time. He also has lots of supervisees and other types of clients for the various strands of his work so I doubt he has a great many therapy clients anyway. I've never noticed anything different about his room except the occasional new thing popping up, like a new ornament, which I guess might be from a client.