With respect, kanawa, by using the words "the dog's parents," the poster is misinterpreting what a "parent" is.
Finny, my love, the poster was responding to posters who mentioned the incident in Minneapolis that resulted in the death of a child.
Her comment was...
"Did you read the story about this. It’s the owners fault ! They kept this dog chained up in the basement because they knew he wasnt a nice dog. This dog was kept for god knows how long alone and unsocialized. Dont blame the dog for this one ..this blood is on the parents hands for keeping this dog."
As you can see the poster never uses the phrase "the dog's parents"...she is referring to the child's parents.