Any dog owner will tell you that there's nothing like coming home to a pet (unless you have a cat, as they don't really seem to care). It has a special charm that nothing else can really match. And the rumor says that dogs don't perceive time in the way humans do, so your trip to the grocery store may feel like an eternity to them.
This dog's owner has been away for two years, and the dog's reaction seems proportionate to her absence.
Warning: Turn down your speakers a little -- high squealing alert.