I totally agree. It's just pathetic that teachers will treat children differently based on things like this. Teachers should teach children and base grades on the work, and behave professionally and kindly at ALL times.
When I was a chiropractor, I treated my practice members well even when they weren't following my advice, and that's no different. I never was rude to someone just b/c they did something else. Teachers should learn to separate their personal feelings from their professional, NOT talk about children to others (positive or negative, IMO), and TEACH. it's ridiculous that anyone should have to worry about dying on hills just b/c they'll have years in schools...honestly none of this should even be passed along once it's taken care of.
Hannathy didn't actually say he needed the para because of being violent. She said "this and that", not "this because of that". If the boy twisted the OP's son's arm, then he IS a danger to others, because while 6 year old boys can be hard on each other when they BOTH want to be, when it's a one-sided thing they can also be quite sensitive. Twisting the arm, whether it's a joint twist or twisting the skin around (what's the phrase for that nowadays?), would be PAINFUL.
My dad's mom didn't take his side, and my dad turned out abusive without trust in anyone. My mom took my side and I'm a generally nice person (did have to have some therapy from leftover nonsense from my dad) with trust, because I had someone on my side. I didn't respect my teachers because they constantly showed that they didn't DESERVE respect. They couldn't even remember my mom's last name! How sad is that? What if the teacher got married and I couldn't remember HER last name (assuming she changed it)? How quickly would I have gotten into trouble? (quickly, given my teachers) My paternal grandmother believed in respect even when they didn't deserve it...so she got her entire family PRETENDING that they loved and respected her, but really hating her (especially the children, she was MEAN)...my maternal grandmother was a doll who would have allowed us to tell her if she did anything wrong, and she got respect, love, and like from her grandchildren... Lip service for respect is useless IMO.
Any kid who has seen The Sandlot can easily pick up "you're killing me" (Smalls). That's where my son got it. He's 6. Says it when appropriate (or when he can get a laugh). Sometimes with "Smalls" at the end, sometimes not.
I didn't have your big highs or your same lows, but I can definitely relate.

So with THREE different stories, why are they going forth with ANY punishment for the OP's child?
I was basically successful in school, yet had NO love for my teachers. My teachers are the REASON I dislike the whole institution of school. I have many friends who are teachers, I read their vents on facebook, I talk to them in person, and I know ONE that seems to be a most excellent teacher. Funnily enough, she dropped out before graduation, got a GED...she did this after reading a book called something like Guerilla Homeschooling (not the actual name) and realizing she could LEARN so so so much more at home than at school, and she went and DID just that! We were stuck in prison memorizing and she went out and learned. I find it intriguing that she became a teacher, but I think she's probably just about the best at it b/c she knows what it's about, and it's NOT about punishing students for nonsense.
That's just awful, I'm so sorry.
I agree.
So the OP didn't get any good advice or kind words at all here?
My son can burst into tears if I look at him wrong...if I were actually being mean to him on every day we do learning work (we homeschool mainly thanks to what I took away from the "teachers" I had) I'm quite sure he would benefit from counseling. Do you really think that an adult that spends 40 hours a week with a 6 year old is NOT going to have repercussions on the child's development? Heck, I had to take FMLA for myself, for my own mental health, thanks to my BOSS...again, 40 hours a week was spent with him, less one-on-one time than when I was in school...you bet your bippy I think a bad teacher will mess with a little kid's head!