Are you pondering what I'm pondering?

"Are you pondering what I'm pondering?" phrase: comment often made by gamers when all or several people at the table have just stumbled across the same brilliant strategy or discovery; the player to whom the question is addressed has an obligation to respond with "I think so, but...," followed by something completely bizarre.
Ex: GM: The floor is polished mirror-smooth, and you can see a long seam in the dome overhead." Player 1: "Aha! Are you pondering what I'm pondering?" Player2: "I think so, but Tonya Harding isn't skating professionally any more, is she?" [BC]
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Addendum #1: This, of course, is a reference to the immortal Pinky and the Brain cartoon. [GJ1]
Addendum #2: Often a favorite phrase when macgyvering.