It's kind to return someone's lost pet to them.
Mark is walking down the street, when he notices a cat with a tag around its neck which shows an address and phone number.
Mark wants to take the cat somewhere so it's off the street.
Mark takes the cat to the address listed on the cat's collar and gives the cat back to the people that live there.
Mark decides to take the cat to his house where he feeds the cat and keeps it for himself.
The cat's owners are relived and delighted that their loved pet has been returned safely to them.
The cat's owners are devastated and sad as they remain ignorant about the fate of their cat, thinking it likely died.