First of several episodes told from the perspective of a character other than JD.
The title of the episode (His story) reflects that this episode is told from the perspective of Dr. Cox and not J.D. Most of the episodes start the title with "My" (ex. My Fruit Cups).
First episode not to have "My" in the title.
When JD is faking holding the elevator when the janitor is running for it, the floor button lit up is 4 meaning JD selected floor 4. However after the janitor gets up from falling, you can see the floor level on the frame of the elevator and it shows the current floor is 4. So essentially JD pressed the button for the current floor.