So, what
was Haruhi humming when she skipped off near the end?
It wasn't
Rock is Dead like in the book, unfortunately... although I can see why that would be impossible for Aya Hirano to hum...
In any case, great episode. Really can't find much to complain about, so 9/10.
They've covered up through Chapter Three and into Chapter Four, and I suspect they'll want to end the episode with -that scene-, which should be interesting.