Dog in the Tub II

Okay, some of you remember my story of our dog, Sparky being in the tub one day when we got home. Well, again today, same thing. We have no idea again what he was doing in the tub or why he was in the tub. I may have an idea - both times I had my slow cooker going and sometimes it starts to make noise with the lid rattling. I wonder if it scares him but why he goes in the tub and not under the bed, etc. is very strange. He has never been afraid of thunder or tools or other loud noises so this does not really sound like the cause. Maybe he just felt he needed a bath - wonder if he will learn to turn on the tap!!!!!