The Big Bang Theory2007

Leonard Hofstadter:
So, listen, Do you remember when I said the similarities of the equations of General Relativity and Hydrodynamics suggest you could find the equivalent of Unruh radiation in a large body of water?

Penny:
I thought I said that to you.

Leonard Hofstadter:
Anyway, Stephen Hawking's team is looking into that, and I've been invited to join them.

Penny:
Wow! Hawking, good for you!

Leonard Hofstadter:
Well, it is. Just, you know, I'd be gone for a while.

Penny:
For how long?

Leonard Hofstadter:
Three - four months.

Penny:
Whoa. When would you leave?

Leonard Hofstadter:
Couple weeks.

Penny:
Wow. OK. Well, I'll just come visit you.

Leonard Hofstadter:
That's the thing. You can't. I'll be on a ship in the North Sea.

Penny:
On a ship? Aren't they afraid Hawking'll just roll overboard?

Leonard Hofstadter:
He's not going to be there. He's just sending a team to research his theory.

Penny:
Oh sure. Like when you send me to kill spiders in your bathtub. Well, OK. Four months.

Leonard Hofstadter:
Yeah. And... I'm a little worried, because things between us have been *so* great, and I'd hate to do anything that screws that up.

Penny:
Well, sweetie, if you're going to screw things up it's going to be while you're here, not while you're away.