Although I hope the addition of that language makes some kind of impact, I have to wonder if it will. People who allow their pet to roam un-tethered have rationalized their behavior and found a community of like-minded people, many of whom speak in a manner that indicates they truly believe they are morally superior to those who would "limit" their pets. And really, their behavior is rational. Don't we all seek to maximize benefit and minimize cost in nearly everything we do? Pet owners who refuse responsibility for restraining their pet seek to maximize the benefits of pet ownership (companionship, defense, conversational ice-breaker, etc.) while minimizing the cost (financial and convenience-wise). Meanwhile, the rest of us, including responsible pet owners, the pets themselves, and wildlife bear much of those costs. This practice is called externalizing costs, and it is how many industries, industries for which many of us have low regard, have made a great deal of money.