06/20/2011 04:47 pm ET Updated Dec 06, 2017

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

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?