I have never apsolootly hated Umbridge in the same way other people have.
I am a person who is vary self conserved. I follow rules, I dress in high cut shirts and jeans that always go past my knees, and I keep my head down.
So if I had gone to Hogwarts, I would never have a problum with her, only that I didn't like what she was doing. I would never out right hate her.
But re-watching the fifth movie. I realized that there was one thing that I didn't like about her. When she fired the divination teacher. I liked that teacher a lot. She reminded me of my world lit teacher in not only the class room envirement, but in personality and wardrobe. And seeing Umbridge smile wile the teacher cried and begged to let her stay, made me want to scream at her. That she had no right to do this that she was abusing her power to proove that she could do so with out punishment.
I never had a teacher like umbridge, but I have had one like Trelawney. And if anyone made her cry, or told her she wasn't fit to teach me when I've learned so much, I would feel like that person needed to be taken down a peg