Then what is recommended for a dog that will tip any bowl except ceramic?? I only use it for his food...but when he starts eating, even in a "no-spill" bowl he will normally loose about 1/4 of his food in the floor. Ceramic put an end to that.

I have a plastic "auto waterer" with a jug that is tipped over, and have never had a problem-the first one we had would leave mildew at the highest point of the water but we took care of that with washing everytime the jug was empty...