Prompts: DESK, RHYTHM, REVOLUTION
One Charms class, Harry, Ron and Hermione were practising how to make furniture dance. They were quite successful, and so the desks were dancing quite rhythmically.
After Charms, the desks were very tired from all the dancing. So they started a revolution.
Next class, instead of dancing in the classroom, the desks marched out and rampaged the whole school.
This left Hogwarts in ruins.
