It happens far too frequently—the pet is a novelty for a while, cute when it is a puppy, but then the honeymoon is over and the owner/s simply get bored with the pet or tired of taking care of the pet.
Amazingly, they have even spent a small fortune on the pet! You think they would value it after having paid for it. We also have to point out how much good that money could do if donated to a shelter, rather than given to an often unscrupulous pet breeder exploiting people and animals. There is nothing more horrendous than a puppy mill.
Remember too that every baby animal is pretty adorable, but as it gets older, it can the animal can develop behavioral patterns which the owner might find unacceptable later on.