S01E07
-Penny:Hey, if you guys need a fourth, I'll play.
-Leonard:Great idea.
-Sheldon:No. The wheel was a great idea, relativity was a great idea. This is a notion, and a rather suck one at that.
-Penny:Why?
-Sheldon:Why? Oh, Penny, Penny, Penny.
-Penny:Oh, what, what, what?
-Sheldon:This is a complex battle simulation with a steep learning curve.
-Penny:Oh cool. Whose head did I just blow off?
-Sheldon:Mine.
-Penny:Okay, I got this. Lock and load, boys.
-Leonard:It's the only way we can play teams.
-Sheldon:Yes, but whoever's her partner will be hamstrung by her lack of experience, and not to mention the fact...
-Penny:There goes your head again.
-Sheldon:Okay, it's not good sportsmanship to shoot somebody who's just re-spawned. You need to give them a chance to... Now, come on!