What actually happens to Dolores Umbridge
Dolores Umbridge is perhaps the one person in the whole Harry Potter series, excluding He Who Must Not Be Named, who is universally hated.
The short-lived headmistress of Hogwarts gets off on torturing children, has an unflinching holier-than-thou attitude and, unless David Yates has something stashed for an extended edition of the films, she gets nearly away with it…
Near the climax of the book/film, Umbridge is hauled screaming into the Forbidden Forest by a group of centaurs after she insults them. No one sees what happens next
There's a reason Rowling made sure it was centaurs who snatched Umbridge, rather than any of the countless other dangerous creatures in the forest (like the giant spiders). If you're familiar with the mythology of centaurs, they have the heads/torso of men and body (and animal desires) of horses.
Part of their mythology is that they rape women.
Two characters watch Umbridge getting dragged away — Harry Potter and Hermione Granger. At least one of those two knows that centaurs are rape machines. (Hint: It's Hermione, the character whose main purpose in the plot is to know absolutely everything.)
Now, just keep in mind, it was Hermione's plan that bought them into the Forest. In the forest she goes out of her way to make noise and attract attention.
In the end, Umbridge comes back, and comes back suffering from some kind of major trauma that didn't involve any damage to the visible parts of her body, and without any real explanation of what happened in the forests.
Read more: http://imgur.com/gallery/k7uba