A little fun fic about how the Weasley Twins took one sentence from Professor McGonagall as a challenge instead of a serious note... the babbling, bumbling band of baboons!
"I will not have you, in the course of a single evening, besmirching that name by behaving like a babbling, bumbling band of baboons!" Professor McGonagall had told them at the meeting in Gryffindor Tower, a meeting which was all about the upcoming Yule Ball.
Of course, for Fred and George Weasley, that meant the opposite. Instead, their plan was to make the entire population of the Great Hall at the Ball turn into a babbling, bumbling band of baboons.
"Game on," they had whispered to themselves, smiling. "One babbling, bumbling band of baboons coming up at the Ball."
Hiding in their secret laboratory, which they had stolen from a Seventh Year named Dexter, the Weasley twins were concocting a potion that would turn everyone into a babbling, bumbling band of baboons.
The plan was simple: they had planned to sneak into the kitchens, and, bribing Dobby the House Elf, would get the potion placed in everyone's drinks that would appear at the tables, which once drunk, would turn them into babbling, bumbling band of baboons.
Of course, no plan of operations extends with certainty beyond the first encounter with the enemy's main strength. And for the Weasley Twins, their plan to turn everyone into a babbling, bumbling band of baboons found its first problem...
They had made the potion too strong. That strong in fact that, despite it turning the Yule Ball attendees into a babbling, bumbling band of baboons, it had a stronger effect on Veela and Giants...
...it turned them permanently into a babbling, bumbling band of baboons.
A 10 foot Hagrid as part of a babbling, bumbling band of baboons, stuck so he couldn't turn back.
A certain Beauxbatons Champion as part of babbling, bumbling band of baboons, stuck as a baboon.
What was worse was that they had to see their older brother, Percy, who was covering for Barty Crouch as a Ministry representative, turn into one member o the babbling, bumbling band of baboons, trying to mate with the baboon form of Professor Trelawney.
"Whoops," they said when confronted by an irate baboon form of Professor McGonagall who was grunting at them, her wand in her hairy hands. Eventually, she returned to her human form and, swearing at them in Scottish Gaelic, cast curse after curse at them.
During the 600th detention of their school career, they eventually got the message that they shouldn't have tried to turn people into a babbling, bumbling band of baboons.