Leonard: You'll never guess what just happened.
Sheldon: You went out in the hallway, stumbled into an inter-dimensional portal which brought you 5000 years into the future, where you took advantage of the advanced technology to build a time machine, and now you're back to bring us all with you to the year 7010, where we are transported to work in a think-a-torium, by telepathically controlled flying dolphins.
Leonard: No.
Sheldon: Ohh..
Leonard: Penny kissed me!
Sheldon: Well who would ever guess that?

Rajesh: You know who's got to be the bravest person in the Marvel Universe? Whoever has to give She-Hulk a bikini wax.
Howard: You want to talk brave, how about Captain America's undocumented Mexican gardener?
Leonard: He's not braver than whoever uses the bathroom after The Thing.
Sheldon: As usual, you're all wrong. The bravest person in the Marvel Universe is the doctor who gives Wolverine his prostate exam.
Howard: How about the guy who gets a prostate exam from Wolverine?
Sheldon: Now you're just being silly. Wolverine's never displayed the slightest interest in helping others prevent prostate cancer.