My parents never, ever asked us what we wanted for pets! They just decided, we were put in the car and driven somewhere, and a dog or cat became part of the family.

My suspicion here is that Liza is going to keep grinding about the dog no matter where the dog is, because it works. She needs a good counselor and has for some time. She is 16 and old enough to understand how to treat animals, even animals she doesn't personally adore.