All dog toys bear labels warning you to supervise your dog while playing with this or any toy. Yet the point of toys (barring the few toys marketed as "interactive") is to keep your dog busy while unattended. Why is this reminding me of the proverbial stay-at-home-mom who hires a nanny? (Yes, CW, dogs bring out parenting discourse, however much or little one thinks of one's dog as a human child.) Meaning, I guess the idea could be that you're home but not actively playing with your dog, so (because what else could you possibly be doing with your time?) you are watching the dog with your full attention as it entertains itself. Or it could be (and I suspect it is) a liability issue, a cousin of the phenomenon of vendors with bongs on display "for tobacco use only." As in, it's a given that the point of a (rhyme unintended) Kong is to give your dog something to do when you go out, but they don't want to get sued if your dog manages to find a hazardous use for the thing. Whatever the case, it bothers me that there's obviously some answer to how to keep a dog busy when it's alone for, say, three hours, something to provide a dog so that it doesn't sit there all depressed, but also doesn't snake-like manage to down some enormous object left with it intentionally for its own amusement.