Penny: (on the secret of the card trick) Not knowing is part of the fun.
Sheldon: "Not knowing is part of the fun." Was that the motto of your community college?
Penny: (to Wolowitz) I think I know how you did the card trick.
Sheldon: Oh, now please. If I don't know, you don't know. That's axiomatic.
(Sheldon has hacked into the Oakridge National Laboratory)
Leonard: That computer is used for national defense. Hacking into it is a federal crime!
Sheldon: Relax, we're not under attack right now.
Leonard: All right, I'm leaving before the black helicopters get here.
Howard: Have you ever noticed whenever [Sheldon] thinks really hard it smells like bacon?
Sheldon: Apparently, you can't hack into a government supercomputer, and then try to buy uranium, without the Department of Homeland Security tattling to your mother.
International Airdates: Australia: May 9, 2011 on Channel 9; United Kingdom: August 4, 2011 on E4; Turkey: November 22, 2011 on CNBC-e; Czech Republic: December 5, 2011 on Prima COOL; Slovakia: December 14, 2011 on Markiza
This episode's end titles has Chuck Lorre's Vanity Card #335.
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