This is the hilarious moment a mother cat accidentally leaves her kitten outside a door in eastern China. In the clip, shot in Heze City in Shandong Province on May 20, a mother cat uses her paw to try to open a door with her kitten standing in front of her. When she succeeds in pulling the door open, the door knocks the kitten flat. However, its mum just walks through, leaving the kitten outside.