Dog Has Best Smile Ever, Makes Mouths Happy (PHOTO)

06/20/2011 04:47 pm ET | Updated Aug 20, 2011

We're not sure who this dog is or why he's so happy, but does that really matter? He's flashing a glistening set of chompers and turning our upside down faces into big Kool-Aid grins. And that old adage that pets and their owners start to look the same? Guess that's totally true, isn't it?

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