Dog Saves Owner

I don't want to sound negative, but, this article is only mildly interesting at best. How does this, or can this affect any person in this room? I just don't see training dogs to do this as either profitable or practical. I don't feel it would pay off in many instances and more than a few unlucky owners would fall through the cracks. But as for the guy, great for him. He's lucky he has a dog with those capabilities.