... and tell Tim, "Your arteries are jumping for joy."
Tim told me that he is a "fat freak" who "can't eat any more donuts."
I don't see how Tim made this leap? I agree the teacher handled this poorly, but she made no comment about his weight.
I can see it. I'm PDD-NOS (Pervasive Development Disorder - Not Otherwise Specified, or, high functioning on the autistic spectrum), and I've always had self esteem issues. I once had a really mean third grade teacher who just decided she didn't like me, and when she asked me of my opinion on a field trip to the BLM [Bureau of Land Management] Office and I was quite honest with her. I said it was "Boring." Blunt honesty is an autistic trait, though I've learned differently later.

Let's say she got angry at me for some reason I still don't understand, that she sent me home right there and then, and told me I was going home. My third grade mind didn't connect home with office, so I started walking him, taking the literal interpretation. My mum found me, crying, and I'm not kidding if I said it was in the middle of a rainstorm.
Generally, she just singled me out on a lot of things, but that really stuck out.
If its any help, though, I ended up getting the stomach flu the same year.
I ended up barfing six or so times in her classroom. I didn't mean to, it happened, but I'm a tiny bit giggly of it now.