Yeah, Diane Lane, it is better to be safe than sorry for sure, when it comes to pets or small children. It might be a pain in the butt to monitor them all the time, but if something happens to them, or God Forbid they should disappear, the conseqeuences are much worse than if you had just kept a sharp eye in the first place. The little dog I am watching listens quite well but I still have him on a loose leash, because I don't want him tearing off after a deer or something.