Quote from Phil in The Last Walt
Claire: How weird was that? Phil: I know. Crazy weird. Claire: It's like he had no feelings at all. Phil: I'm more worried about the one you showed. What's with all the smiling? Claire: What are you talking about? Phil: That grin. "Walt's dead." You looked like the joker. Claire: I didn't smile. Phil: You did. It's like a weird coping mechanism. You did the same thing when you told him his hamster died.