My 10-pound house cat is a darling around me and my wife, though he occasionally plays as aggressively as the cat in the video.
He is VERY protective of the house. He has all of his claws and he is not afraid to attack people or other animals (my in-laws dog, for example) if he does not want you in his house. Most cats hide when there are strange people around, my cat actively tries to drive those people from his house.
