A cute video has emerged from Belgium of a cat opening the little flap on the side of a box. <br /><br />The footage, filmed on December 12, shows Swakke the cat playing in the box, before pawing the little door open. <br /><br />The filmer later wrote online: "Swakke, like all other cats, loves boxes. <br /><br />"But this one was more fun as it had a little flap that was like a door, and he duly opens it when knocked on."
