Petal: This one's really short, but really true. Just watch.
What Dementors Do To People
"Hermione, what happens when dementors suck the soul out of people?" Ron asked.
"Well, I've done further research, and the lifeless husks end up used as mannequins," Hermione explained.
And this, everyone, is why you're all instinctively freaked out by mannequins.
Petal: See? Review!