Death is with you all the time you get deeper in it as you move towards it but it's not unfamiliar to you. It's always been there so what becomes unfamiliar to you when you pass away from the moment is really life.
You see another side of Draco when he's with his dad. When Draco is with his dad he doesn't say anything. He keeps his mouth shut. He's sort of bullied by his dad so he acts very different.