[He looks a bit stunned. A psychologist? He knows the term, though he's not familiar with all the nuances. He never actually thought of it that way.]

I... guess kind of like a psychologist, yeah. [He scratches his head a little.] Sheesh, I hadn't considered that. I guess you make a good point, though: everything in life is kind of one big chain of cause and effect. Maybe knowing the scientific reason for the way somebody ticks is kinda useful, too.

So what's a physicist do? I mean, I know what physics is, it's kind of fun to defy it when I can, but what sort of... I dunno, experiments did you do?