I have the rubber mat under the bowl, plus the bowl has a rubber rim under it. I wish the whole bottom was rubber, but since it is one of those special, slow eating bowls, it isn't flat bottomed. Then I have it in a place that it is surrounded by the trash can and the container that holds their food. It is fine when Rex eats, but then Coco has to go to lick his bowl and I never know where I will find it! This is where I found it just now. Under the bakers rack.

Coco came running as soon as I moved the bowl to where it should be, LOL.
Don't mind all the pretty wires that my hubby has so nicely tacked up on the wall out of the way for me, LOL.