Penny: Honey, you'll be fine as long as you don't do that bungee cord thing, okay?
Sheldon: Penny, didn't you recently state that you and I are friends?
Penny: Yes, Sheldon, we are friends.
Sheldon: Then I hereby invoke what I'm given to understand is an integral part of the implied covenant of friendship. The favor.
Penny: Oh, dear God.
Sheldon: I'm sorry. I didn't realize I was interrupting your morning prayers. When you're done, we'll go.