Humans are not always Human being
You're right Taz, some people just don't want their pets after a while. I call them "Puppy lovers". We all see them, with their new puppy, riding in the car with puppy in hand behind the steering wheel. We see them walking the puppy, and playing with it. When that puppy grows up, it is thrown out back, tied on a rope, and left out in the rain. " Did anyone feed the dog lately?"
I just made a great deal for a 125 gallon aquarium. The selling point of the deal was that I told them I would take great care of her Discus, and Angel fish. I told her how I would make their habitat a lot better than it is today.