The Big Bang Theory2007

Penny:
I know this is none of my business, but I just... I have to ask - what's Sheldon's deal?

Leonard Hofstadter:
What do you mean, "deal"?

Penny:
You know, like, what's his deal? Is it girls...? Guys...? Sock puppets...?

Leonard Hofstadter:
Honestly, we've been operating under the assumption that he has no deal.

Penny:
Come on, everybody has a deal.

Howard Wolowitz:
Not Sheldon. Over the years, we've formulated many theories about how he might reproduce. I'm an advocate of mitosis.

Penny:
I'm sorry?

Howard Wolowitz:
I believe one day Sheldon will eat an enormous amount of Thai food and split into two Sheldons.

Leonard Hofstadter:
On the other hand, I think Sheldon might be the larval form of his species. Someday he'll spin a cocoon and emerge two months later with moth wings and an exoskeleton.

Penny:
Okay, well, thanks for the nightmares.