Found a new one today while leveling a leatherworking alt. When you go meet Atikka Moonchaser (a tauren) for a leatherworking quest, he says this to you as a greeting, right out of the blue:
“There may be blood on the Horde’s hands, but there is no purpose in washing them until the Alliance is shattered.”
And I was like “WTF, Blizzard? Guilt in the middle of a freaking profession quest?”