I absolutely hate the little girl
What a little brat!
I would never have tolerated her keeping MY dog.
I don't care how many tears she would have shed.
And it certainly wasn't fair to the dog. With that kid, the dog's existence would have been a "learning experience" - meaning she might have done any number of things that would have resulted in harm to the dog: forget to feed him, let him off his leash accidentally, etc.
With the dog's original owner, on the other hand, the dog could enjoy his regular routine, not to mention the maturity of the original owner.
(Although I thought the original owner was somewhat neglectful as well, leaving the dog to his own devices while the owner traveled out of town)
"Don't call me 'honey', mac."
"Don't call me 'mac'... HONEY!"