It's probably just a personal thing, but I felt a really strong sort of empathy for the way Harry was masquerading as Madam Perrin- clearly not thinking straight, and not having thought his plan through properly. Harry's losing all control here- of his emotions, of the case... He blunders a bit in this chapter, and Draco's attentions are causing him to feel a confused mixture of denial and hope. He seems so much more vulnerable.

I actually blushed when his disguise was torn off him by Draco's spell. *_* And Draco's immediate transition from a professional Draco to the Draco seeing the apotheosis of his one foremost fantasy right there in the room with him again.

So I was "uncomfortable" but in the good sense. :) The best chapter yet.