You growled with low frustration, a frequency that rumbled deep within your chest. You were seated in front of Professor Snape, talking about your new found detention and homework. You had failed $ONE$ test, yet got treated as if you had killed Filch's cat. You laughed heartily before you knocked on his office door, walking in with a confident stride.
"Cocky, I see? Sit down, Mr/Mrs [last name]. We have a lot to discuss... about your.. behavior."
"Oh right, Professor Snape. What else would I do? Stand here?!"
...
"Detention at 7 pm tomorrow; dungeons. Keep back talking, girl/boy."
You held your tongue after he said that, sitting down in the chair in front of him. He huffed out a mix of a scoff and amused but sarcastic laughter, his eyes gleaming with witty amusement and a slight hint of satisfaction. Humor, eh?