I will not sing "we're off to see the wizard" when sent to the Headmaster's office.
Neville grimaced, and began trotting up the stairs once more. Two seconds before, the staircase moved him to the wrong portrait. So he had to wait five minutes for it to switch back. He had an important mission to take care of, and he wanted to get it done before curfew. He hated Mrs. Norris, especially after that time she got him a minute after curfew in fourth year, and he had to stay for a three hour detention with Filch. It was horrendous. He got to the portrait, said the password, and then lumbered through, looking for a certain person in particular.
"Harry, Dean told me, that Seamus told him, that Cormac McLaggen told him to tell me to tell you that Dumbledore want's to see you in his office right away."
Harry sat in the plushie chairs by the fire dumbfounded.
"What?" HE said, looking genuinely confused.
Neville sighed, "Dumbledore want's to see you in his office. Now."
Harry jumped up, and was out of the portrait hole in a matter of seconds.
All in all, Harry was not a happy camper. He had to go see professor Dumbledore again. He understood that sixth year was important, and that he had stuff to do, but jeez, lay off for a week or two. He continued on his way, taking his sweet time, when a tune suddenly came to his head. He laughed out loud before he started to whistle it, which turned to humming it, which turned into him singing it as softly as he could.
"We're off to see the wizard, the wonderful wizard of Oz.."
Smiling to himself as he sang, Harry continued on his way to the elderly wizard's office, wondering if anyone besides Hermione would get the song reference. He would have to tell her later.