Grey's Anatomy, Season 9

Derek:
I think you're letting me win.

Shane Ross:
You're a smart man.

Derek:
I am.

Shane:
So am I. That's why I'm absolutely letting you win. Whupping your ass wouldn't be a smart move, especially since you're a competitive guy who likes to win.

Derek:
Do you know who else is a competitive guy, Ross? A neurosurgeon. I thought you had what it takes to be one.

Shane:
Mm. See? I am a smart man, and you are now goading me. But you won't like it when you lose.

Derek:
Oh, "when" I lose?

Shane:
You'll be angry and never want to see my face. That won't help me on my quest to become you.

Derek:
Yeah, I've told you, it's creepy when you say that.