It reminds me of that video set in the lab where all the monkeys have faces (have no idea the band or song), which always creeps me out a little. It's similar in (color) tone and the way they shrunk the guy's body to fit him on the dog (you'll notice his head is bigger). There's a companion to that commercial that has started showing, it has a woman in it, she's with a different animal though, can't remember, but the same digital sizing is going on with her.
Some of the other crunchy nut ads are funny though, the normal ones (per se), we've laughed out loud at a couple of them (couldn't for the life of me tell you which ones though but they aren't part of the series with the little man on the big dog).