Survivor's guilt; the guilt of surviving something that someone else did not. It still replays in his head on a daily. It plagues him. Haunts him. He remembers Piers' screams, he remembers watching him burn, just to he could stay alive.

It gnawed at him that he'd get to live, despite all he's done, if he could he would be in Piers' place instead.

Chris grips the glass, white knuckles turning white from the strain. It takes him a moment to come back to reality before knocking back the drink, burning as it went down. He sighs heavily, head hanging low. If he hadn't sacrificed himself, he'd still be alive. This is the price he has to pay for being a leader. Who else would take his place?