What a sad, horrible story.
Putting a dog down is such a difficult decision, even though it is (usually) made only when absolutely necessary, and even then, it's still difficult and painful. (I had my husband bring my Shih tzu to the vet when I just knew that would be the result...) To have two dogs put down because it's an incovenience....Grrrrr!!!!! And why couldn't she pee pad train them?
Now she has another dog and is walking her anyway...just awful.