<p>This playful panda cub at Chengdu Research Base of Giant Panda Breeding in China was having fun hanging onto a vent on the door and keeping it open, even though its keeper didn’t like that idea.</p><p>After the door was shut, the naughty panda climbed onto her leg to ‘protest’. Isn’t it the cutest door stop in the world? Credit: iPandaChannel via Storyful</p><br />
