Doug Barry explains:

The first-person, shaky-cam sprint upstairs behind these mini dachshunds is an odyssey into a land of bizarre adorability, where dogs not only yearn for bathtime, but are also capable of bathing themselves. Obviously, this is all the product of some really primo CGI work, because anyone who has a dog knows that wrestling a dog into a bathtub is like putting toothpaste back into the tube with a pair of chopsticks cradled in a half-asleep hand.

[h/t Boing Boing]