Harry: trying to sound robustly sane after realising he has scared Hermione with his talk of living with dead people is another good moment for him (like the chivalry one). I like it. His moment of seeing how it all fits together also appeals to me. For once I empathise entirely with him. That is a rare experience. It also demonstrates Dumbledore's wisdom in not telling him about the Hallows and the wand, and not making the ring readily available: he gets carried away with the potential power, and then must learn to put that aside.