Oh, exactly! It's one of the reasons I love the relationship with Zuko and his Uncle - how they can be badass and fighting off enemies one minute, and later have Iroh giving his nephew sage advice (which he may or may not listen to, usually the latter) or what have you. :) You can really tell that Zuko cares for his uncle, despite all his bluster, and that Iroh cares for his nephew in return. :) It's heartwarming, you know?