"Weak little boy. So often had a nosebleed. All he wanted was to be protected and you turned it against him. You turned him into your tool. And you never, ever cared!"

Barty yelled the last word and then he got up and headed for the stairs. "I'm going to go lock myself in, Ianto. Why don't you sit quietly somewhere and think about what you've done until Jack Harkness comes back, hm?"

There, that seemed lenient enough.