1. Correspondence with Death Eaters is not allowed

Ron decided to send a letter to Bellatrix suggesting that she marry Voldemort.

Dear Bellatrix,

I think you should consider divorcing Rodolphus and marrying Voldemort. I mean, you have a lot in common, you like torturing and killing people together. You would really be an ideal couple. Please put some thought into this. From, Ron Weasley.

The next day Ron got a Howler. "How dare you suggest that I divorce my husband and marry the Dark Lord. I live for nothing but to serve the Dark Lord. You will pay for this Weasley, mark my words". By the time Bellatrix was finished, McGonagall, Dumbledore, and a nasty looking Auror were standing next to the Gryffindor table to arrest Ron. "Ronald Weasley you are under arrest, and detention for the rest of the year plus 50 points from Gryffindor."

2. Dueling is not allowed in class

"Hey, Potter, is it true that you can't even Vanish a fly?"

"Shove off Malfoy"

"Rictumsempra"

"Stupefy"

"Petrificus Totalus"

"Explliarmus"

At this point, McGonagall Stunned them both and revived them.

"10 points from Slytherin and a detention Mr. Malfoy, and same to you Mr. Potter."

3. Blackmailing Teachers is Not Allowed

"Mr. Weasley, put away those Chocolate frogs."

"No, and I won't unless you want me to tell the class what you do every night"

"Mr. Weasley, I'm warning you"

"She sings Chasing Cars in the shower every night."

"20 points from Gryffindor and a month's worth of detention"

3. Yelling anti-house things is not allowed

"Harry, I dare you to climb onto the Gryffindor table and yell something to the whole hall.", said Ernie MacMillan

"Fine"

He climbed onto the Gryffindor table and yelled, "Slytherins Suck and Gryffindors Rule" over and over.

Snape walked over. "Get off of the table and a week's worth of detention."

4. Spying on Teachers is not allowed

I wonder what McGonagall and Dumbledore do every day?", asked Fred

"Let's hide in their offices, you go to Dumbledore's, and I go to McGonagall's.

Fred was hiding behind a potted plant in Dumbledore's office. Harry walked in to ask Dumbledore a question and saw Fred.

"Professor, Fred Weasley is hiding behind that plant."

Fred stepped out from behind the plant.

"Hello, Mr. Weasley, where is your brother?"

McGonagall burst into the office, dragging George by his ear. "He was hiding in my office spying on me all day!"

"Ah, yes, 2 month's worth of detentions and 20 points from Gryffindor each."

5. Mailing Students to Voldemort is not allowed

Hermione was walking past Ron and Harry and saw that they were trying to take an abnormally large package to the Owlery.

"What's in that?"

"Nothing"

"Then why is the box screaming and addressed to Voldemort with instructions to kill the contents?"

Hermione opened the box and found Draco Malfoy inside. He ran away without a word. Hermione turned them in to Professor McGonagall, using the box as proof.

"3 months of detention for both of you, and double detention for you Mrs. Granger for being a snitch"