Grey's Anatomy, Season 4

Bailey:
Don't apologize to him!

Alex:
What?

Norman:
Oh, Dr. Bailey's right...

Bailey:
Shut up, Norman! I'm not talking to you. [to Alex] He got in your way, he's been doing it all day. And when that happens, when an intern gets in the way of a resident, you're not doing what's best for your patient. Now, you almost missed diagnosing that kid today because Norman here thought it was drugs. So don't apologize. He should be yelled at.

Alex:
Dr. Bailey, he's as old as the hills.

Bailey:
I don't care how old he is, Dr. Karev. He's still an intern, and interns are basically teenagers. We are not hard on them because it's fun, we're hard on them because this is a life and death job, they need to learn that. There is a reason why we have a pecking order in a hospital. It saves lives!