Purrley,
Just want to say that, "it's a dog thing".
The dog will not likely ever change his
opinion on the "crunchies", no matter how
gross (I'm cringing as I think about it),
we think it is.And there's the health aspect
to think off also...
The idea of barring Tess's access to the
cat box by some barrier is probably your best bet. I heard of someone who bought one
of those "covered boxes" and the dog stuck
his head in to get the "prize" and got the
cover stuck on his head.He was eventually
rescued by his owner. Wonder how the dog
explained that predicament? LOL.