Comment dit-on "It's not possible for anyone to be so horrible on their own. I'm sure you are unfit parents. Me writing this is a waste of time"?

I always try to be a nice person. When I was student teaching, one of the reasons my cooperating teachers marked me down a grade was because they said I was too nice. I don't think I have ever yelled at anyone, Aaron and Eliza aside of course. I don't like feeling as if have I hurt someone's feelings. I hate being mean.
Tivoli has broken me.

I was warned by the girls that taught here last year that teaching here is HELL. But I thought, oh, free housing. It will be worth it. BUT, is it? I am starting to think that a tent pitched in front of Monoprix might be a better alternative. At least then I could collect the spare change of the grocery store shoppers.

I have one class in particular that is beyond controlling. They are 3emes, the French equivalent of 8th grade. And I don't know how it is possible for any group of students to be this bad. Yesterday, one of them THREW A CHAIR. Although it is the first time a chair has been thrown, they throw things daily. It started with bits of paper, then pens/pencils, then pencil bags, then notebooks. So really, a chair just seems like the most logical progression. I expect a desk to be thrown next week.

I don't have to plan lessons for this class. I just have to plan punishments. I usually have them write lines for part of class. I spend another part of class moving one student to the front of the room, one student to the corner, one student to another corner, etc. The few times I actually have managed to get them to do some kind of work, it usually goes something like this:
Me: Write a short description of this picture.
Soulless French 14 year old: en français? ou anglais?
Me: ENGLISH.
SF14YO: Putain! Mais non! Pourquoi?
Me: Don't say putain. And why would you write in French during English class?
SF14YO: But...eeuhhhh...I can't speak the anglais.
The work I do get (if any) is usually something like this "There is a lot building. Devant les buildings, I can see a lac in fact. The lac, it is bleu." Then they ask me "It is good, no?" To which I always reply "No. Actually, it is not good."

So after I particularly bad class yesterday, I asked the teacher if I could start giving detentions or sending kids out of the class. To which she replied "Well, what you can do is write in their carnets" The carnet?! The carnet is a notebook that all the kids have. It is supposed to be a link between the school and home. So I am supposed to write in all the carnets of the students who were bad. No thank you. That seems like a lot of work for me (I would have to write in at least 15 carnets) and a mild slap on the wrist of the student. I would have to write in perfect French, which I don't speak or write. French people have this amazing ability to not realize that learning a language is a two way street. They think the entire world is born speaking French. Daily, I hear sentences such as this "Next Thuesday, I will go in Paris for to make a shopping" but if I make a mistake in French, look out. Suddenly I am not qualified to teach ENGLISH.
So a boy throws a chair at another student, and I supposed to write in his carnet a little paragraph about how naughty Baptiste was during class today? That just makes more work for me and I know nothing will come of it. Grr.
So I am really mean to the Tivoli students. It is a learning experience. And I have 5 months left to learn. I figure by the time I am done here, I will no longer be described as nice.
I don't worry about hurting their feelings because I think a prerequisite to be a Tivoli student is to be born without a soul. They have no feelings. The bad ones are minions of the devil. The "good" ones have indifference. They all have really stupid haircuts.