Hermione doing anything remotely unhinged and the Staff finally hearing about it.

Hagrid: “I ca' believe she did i'. She ca' be righ' scary, tha' one.”

Minerva: “We are speaking about the same student, are we not?”

Sinistra: “Her knowledge would make her a formidable opponent if applied properly.”

Sprout: “She kept Rita Skeeter hostage in a jar for 4 months.”

Minerva: “She what!?”

Severus: *can't stop the great guffaw of mirth that explodes forth*

Minerva: ...

Sprout: ...

Sinistra: ...

Hagrid: ...

Severus: *ahem* 10 points to Gryffindor.

Minerva: Severus!

Sprout: Only 10, Severus really. I think 25 points to Gryffindor would be better.

Sinistra: I think 50 considering it was Skeeter.

Hagrid: ... 100 points to Gryffindor for makin' Snape laugh for the first time since I been 'ere.

*noises of agreement*

Minerve: *buries her face in her hands*