Footage shows a cat squeezing through a sliding door in Taipei, Taiwan. <br /><br />Owner Ava Chen said that her cat knows how to open their door. She said: "My cat's so smart and can get through any line of defence, including doors."<br /><br />The clip was filmed on February 4th.<br /><br />++CLIENTS PLEASE NOTE: THIS VIDEO HAS BEEN LOOPED++
