There once was a man so an old story goes went to the station every day rain or snow, his faithful dog would walk right by his side and sit there and wait till he came home at night. When the man died the dog still would go to the station each day, why? No one knows ... He was waiting for someone he loved, waiting for someone he loved someone he believed in someone he could trust day after day waiting for someone he loved. Days turned to weeks and months turned to years trains came and went but the dog still appeared hoping to see the face he adored His old true companion - the one he lived for but then came a night when the dog finally died. Now I know he's there walking by his master's side. 
Don't you think humans could learn from that dog ? Now I don't know about all of you but I wish that my heart was so true to think he could miss him that much. He spent all his life waiting for someone he loved

"Be it human or animal, touch is a life-giving thing.  Has anyone ever had a stroke or a heart attack while cozied up with a pet?  I doubt it.

More: http://www.loneleeplanet.com/2009/01/hachiko/