If You Love Dogs, the New 'What the Fluff' Challenge Is Just for You



File this one under the "too much time on their hands" category, or alternately, "I just love to confuse the heck out of my dog."

Either way, people -- maybe even entrepreneurial people --are taking the "What the Fluff" challenge, by fooling or outright freaking out Fido or Fifi.

Related: Amazon's Dog-Friendly Seattle Headquarters Is 6,000 Pups Strong

In videos posted on YouTube and Facebook, challengers repeatedly raise and lower a blanket in front of their faces, impressing on their dog that they're behind the blanket until suddenly they're not (having given their pooch the slip by ducking behind a door).

Turns out dogs are hysterically slow to grasp where their pet parents have disappeared to. And some of their reactions are priceless. Check out this video below, especially one dog's "WTF?" reaction, at 0:32.