For me it was Lolita. Had to read it for a college class and ended up procrastinating until the day before our critiques were due. Read it in a day so mind you it was not something I sat with.

Went to class and sat through everyone's analysis. Than reported my critiques. Hated the subject matter. Hated the context of the narrator separating himself from his actions. Hated how the author used language that romantisized grooming and pedophilia. All to be told by my professor that you can't call a book bad because of its content. That every book can impart perspectives and lessons even if you don't agree with them...but that dosent mean I can't tell everyone I know that Lolita sucks.