Harry decided it was time. While he still recognized what the defeater of Grindelwald signified to the rest of the wizarding world, someone needed to remind said wizard that he was not Merlin incarnate.

It was another noisy Saturday breakfast in the Great Hall. The mail had just arrived and most of the students and staff were in attendance. Harry purposely stood up from his seat at the Gryffindor table and strode up to the head table. As he stood in front of the illustrious headmaster, he noticed that most of the noise in the hall had died down. He raised his left fist in front of him and brought up his right hand as if cranking a handle. As he did this he started humming the popular muggle tune "Pop Goes the Weasel" and slowly raised his left middle finger in time to the cranking motion of his right hand.

There were a few gasps and chuckles from the Muggle-borns seated in the Great Hall who recognized the significance of the act.

As Harry finished his gesture he blew a raspberry at both Snape and Dumbledore, turned around, and skipped out of the hall.

He grinned, "Mischief managed."