You may never learn the names of any of the people you talk to in a dog park even after many many hours spent there with them and many hours of conversation. But if - knock on wood - anything should ever happen to your dog these nameless non-strangers will rally sympathize offer to help and hold your hand. I know this from experience.
Man is the unnatural animal the rebel child of nature and more and more does he turn himself against the harsh and fitful hand that reared him.