Heee heee.... I know what he's doing and why. There's a hint in the video. There is food on top of the mirror shelf-thingie and he is trying to tell me in a not-so-subtle way that he's hungry. He used to knock everything off the dresser, but Flutter took over that job and it wasn't as effective as it used to be because I'd simply move knockable items out of paw's reach. Sop now he clacks-clacks-clacks the mirror telling me he's starving to death.