Was a full, but short, novel that I think was summer reading: The Chocolate Wars.

Not traumatizing as much as just a shit message. Don't quietly try to opt out of what the public wants, don't rock the boat, or you'll be executed publicly as a spectacle while your peers cheer.

Kid doesn't want to participate in his high school chocolate selling fundraiser, bunch of other things happen in between, and then his classmates organize a rigged boxing match between him and the biggest school bully where they all cheer while the bully beats the main character to death. And it just hard cuts, ends there.

What a garbage book.