He loves it - I mixed the vinegar with the water and used it the next time I heard "THE NOISE" and he stopped immediately, came right up to the spray bottle and started pawing at it and LICKING the little drips of water!!!

P-U-N-K!!!!

The good thing is he's not damaging the walls. My only complaint is the sound. I'll have to look into SoftClaws though, see if it'd be worth the money just to get rid of a sound. If he was damaging anything, we'd do it in a heartbeat.