Cristina (trying to figure out why Katie is having seizures): So she doesn't have anoxia, chronic renal failure or acidosis. It's not a tumor because her CT's clean. (sighs) Are you seriously not gonna tell me why you won't work with Shepherd?
Meredith: No. What about infection?
Cristina (flips through Katie's file): No. Ah there's no white count. She has no CT lesions. No fevers. Nothing in her spinal tap. Just tell me.
Meredith: You can't comment, make a face, or react in any way. (Cristina stops looking through the file) We had sex.
Cristina (keeping a straight face): What about an aneurysm?
Meredith: No blood in the CT... No headaches.
Cristina: No drug use. No pregnancy. No trauma. Was he good? He looks like he'd be good. Was he any good?