There's an infinitesimal delay in the response. Perhaps it is just a glitch in the system and not Cullen figuring out whether he wants to say 'no, it's a very bad day, provide me with an array of small pies, both sweet and savory, which I will eat when I am assured they will not make an untimely reappearance.'

JJ: Yes?
JJ: Why?
JJ: Do you know something I don't?
JJ: -- never mind, don't answer that, you'll create a wholly incorrect and irrelevant list.