The Mouth: Ah, the black wizard speaks at last. And I see you have brought companions, lesser in power, but still, you would have been useful to Lord Sauron if you had been but willing to serve him. As it is, you are mere fleas compared to the might of the Lord of Barad-dûr.
Harry: And why would I want to serve a being that is restricted to existence as a giant eyeball on a tower, who sends petty emissaries to lie to us and try and crush us with despair? If Sauron had the One Ring, he would not send something as pitiful as you out to 'negotiate' with us. You spoke of whether any of us were fit to negotiate with you. When I look at my companions I see people of power, nobility, impeccable lineage and courage. You have the Royal House of Rohan, whose current King fought the Witch King of Angmar, a millennia old sorcerous wraith and your master's second to a draw. You have the new King of Gondor and Arnor, who under the name of Thorongil burnt out your miserable lair of Umbar and other deeds too numerous to name. You have Gandalf the White, a being of such power and wisdom that you could not know or understand a fraction of his thoughts, who was sent back by Eru himself to face your Master's evil after fighting a dark creature of the same order as your Master to the death. And then you have me. I, who faced a Balrog of Morgoth, Durin's bane, and lived to tell the tale, I who fought Saruman the accursed and cast him down, I who drove the Witch King of Angmar into the earth with a power this world has not witnessed since the elder days, I who killed a Dark Wizard of equal power to any of the Nazgul in single combat at the age of 17, after drawing at the age of 14 and driving him off at 11. And that is just the beginning, you miserable piece of Black Numenorean slime. My fellow wizards and witches have faced dark wizards whose cruel deeds and power would curdle the blood in your veins since they were little more than children. All my other companions have been slaughtering your master's minions in uncountable numbers. I think Sauron is frightened. He has seen his greatest servants fended off and destroyed, some by myself personally, by our power.
Lucius Malfoy insulting Emrys and Eirian, then having to deal with flying piranhas up his robes.
Draco's Casual Danger DialogueSherlock Scan of Harry, Emrys, Eirian, Sirius and George Weasley, while all but George are poised to attack him, knowing damn well how dangerous they are, whilst drinking tea.
Morcar creating a shield that blocks the Cruciatus curse, then cutting off the casters hand.
Boromir tearing into Morcar for mocking Harry. After this, there can be no doubt that Boromir sees Harry as his little brother.
Morcar: I note you don't deny his power. Or his insanity.