Penny: Okay, here’s the deal, you either help me throw Leonard a birthday party or, so help me God, I will go into your bedroom and I will unbag all of your most valuable mint condition comic books. And on one of them, you won’t know which, I’ll draw a tiny happy face in ink.
Sheldon: You can’t do that, if you make a mark on a mint comic book it’s no longer mint.
Penny: Sheldon, do you understand the concept of blackmail?
Excelente trabajo Eilyn