Penny: You locked them in your basement?
Dr. Lorvis: Well, they're not locked in. The door just sticks.
Penny: Okay, so how do they unstick it?
Dr. Lorvis: They'd need the key.

Penny: Okay, you can't just go chasing after every girl who's nice to you.
Dr. Lorvis: Well, that's not what Sheldon says, and he seems to know his way around the ladies.

Leonard: Wow, Donkey Kong. This was my game when I was a kid.
Sheldon: Because it's a story of a pretty blonde girl tirelessly pursued by a small oddly-shaped man?

Sheldon: Leonard, I was wrong. Heaven does exist. And it's in the basement of a urologist's house in Sherman Oaks.