I'm working on background for a character in an upcoming story, trying to flesh out who he was in the past and how it contributes to who he is now. Nothing is really set in concrete, but things...come up, you know? He did something in his past that, to put it simply, was pretty reprehensible. Instead of trashing this detail, I rolled along with it to see where it would take me. And it got worse. Once I spun out the details, I stood back and look at it and said, "that's exactly something he would do." It didn't feel odd. It felt right, even though it's still a bit chilling to me. But, most likely, this event won't even be mentioned in the story. He is a villian in this story, and you'd expect something like this from a villain. It's like he's saying to me: "You wanted to know, so there you are. Don't pretent to be shocked by this." Has anyone else found out things about your OCs you didn't like, and have you been tempted to drop them or change them?