J.D.: So now you're making fun of me because I need a little help getting through this?
Dr. Cox: No, I'm- I'm really trying.
J.D.: You know what, I am sick of getting dumped on, and I am sick of you. [shoves Dr. Cox]
Dr. Cox: Newbie, don't shove me.
J.D.: Oh, really, why not? [shoves him again]
Dr. Cox: Because whenever anyone shoves me more than twice, my mind goes blank and all I see is this white-hot flash of fury.
J.D.: [shoves him again] When someone shoves you like this?
[later:]
Elliot: So, how'd it go?
Dr. Cox: Punched him in the face.