Janitor: What are you doing?
Dr. Kelso: I'm doctoring my file. What are you doing?
Janitor: I'm making this special hat in case black doctor gets the Chief of Surgery job.
Dr. Kelso: I need you to guard this door while I take care of some business.
Janitor: Why should I?
Dr. Kelso: You know why.
Janitor: The bond that can't be broken. That was 20 years ago, but I'll honor the code.