Grey's Anatomy, Season 2

Bailey:
Turn around and walk away.

Derek:
From what?

Bailey:
From my intern.

Derek:
No, I wasn't.

Bailey:
Yes you were, come on, look, you can't do this, you don't have the right, not anymore.

Derek:
I just want to find out if she's okay.

Bailey:
She's not. She's a human traffic accident, and everybody's slowing down to look at the wreckage. She's doing the best she can with what she has left, and I know you can't see this 'cause you're in it, but YOU CAN'T HELP HER NOW! You'll only make it worse. Walk away. Leave her to mend.