You shouldn't steal someone's pet.
Gary is playing with his neighbor's cat outside when he had the thought to keep the cat.
Gary wants to consider keeping the cat.
Gary plays with the cat a little more before shooing it away and going home.
Gary decides to take his neighbor's cat for himself and lures the cat to his home.
Gary gets to play with the cat more in the future without any issues.
Gary gets punished for stealing the cat as his neighbor eventually finds out.