Another Hiding Spot
It seems that pets will try to hide anywhere they possibly can while they’re at the vet. Cats are definitely better at it than dogs, as this pooch demonstrates. Perhaps his line of thinking was “the desk is brownish and I’m brownish… maybe they won’t notice me down here.”
But it’s more likely that there wasn’t really much thinking going on at all and the dog just high-tailed it for the closest corner to cower in until the vet showed up and dragged him out to face his examination like the brave boy he is.