Side question: How does a dog know? It's fascinating that dogs are able to detect cancer/seizures/etc. in people but I'm intrigued with how this dog would know that his master was there...
I believe that it was Mark Twain that said of his observeing humans that he believed their wouldn be more dogs in heaven than humans. My 3 dobies think he may have something.
I've seen this pic multiple times in the last couple days, and it always gets to me. As a big burly "mans man" I am not afraid in the least to say that this pic has made me cry almost every time I have seen it. Not "getting a bit misty" but an actual tear down the side of my face. Your dog will always love you, even when no other person will. Thats the truth.