Many years ago I knew a woman who had a dog to which she fed cooked vegetables. I tried to explain to her that, being a canine, that kind of food was not only bad for the dog but would ultimately kill him. She ignored this. The dog was dead within six months. Cause of death: starvation. Tragic, because it was a really nice dog, too. (I should just have stolen the dog when I had the chance and I'm sorry I didn't.)