Big Bang Theory Quote
Sheldon: Hey, there he is! There my old buddy bud-bud!
Leonard: What's with him?
Howard: Koothrapali dumped him on me and he couldn't get to sleep so I gave him a glass of warm milk with a handful of my mom's Valium in it but he still wouldn't shut up so tag you're it!
(Wolowitz drops Sheldon's bag and leaves)
Sheldon: I'm baaack!
Leonard: I still don't know why you left.
Sheldon: I can't tell you.
Leonard: Why not?
Sheldon: I promised Penny.
Leonard: You promised Penny what?
Sheldon: That I wouldn't tell you the secret. Ssh!
Leonard: What secret? Tell me the secret.
Sheldon: Mom smokes in the car. Jesus is okay with it but we can't tell dad!
Leonard: Not *that* secret! The other secret!
Sheldon: I'm Batman! Ssh!
Leonard: Damn it! Sheldon, you said Penny told you a secret. What was the secret?
Sheldon: Okay, I'll tell you. But you can't tell Leonard.
Leonard: I promise.
Sheldon: Penny lied about graduating from community college because she's afraid she's not smart enough for Leonard.
Leonard: So it's nothing I did? It's her problem?
Sheldon: I drank milk that tasted funny.
Leonard: Penny thinks I'm too smart for her. That's ridiculous!
Sheldon: I know. Most of your work is extremely derivative. Don't worry that's not a secret. Everybody knows!
Quote from S02E01 - The Bad Fish Paradigm