J.D. dresses like a fool as he joins Turk to go out clubbing for the night.
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Colin Farrell guest stars on Scrubs as Billy Ballahan, a patient that got in a bar fight.
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The Janitor makes up an elaborate excuse about A Capella to avoid looking stupid in front of Elliot.
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When giving a speech to pre-med students, J.D. reminisces about his favorite moments as a Doctor.
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Matthew Perry guest stars on Scrubs as Gregory Marks, the son of a famous singer. He also directed the episode.
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J.D. ends up sleeping with Neena (Julianna Margulies) and can't end things with her despite her suing his best friend.
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Julianna Margulies guest starred on Scrubs as Neena, a manipulative malpractice lawyer that ends up sleeping with J.D.
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J.D. is about to get with Molly, but he needs her friend and his ex-girlfriend, Elliot's approval first.
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Scrubs Quotes

J.D.: Hey, I heard a great joke. A guy walks into a dentist's office and says, "I think I'm a moth." And the dentist says, "Well, if you think you're a moth, why are you at a dentist's office?"
J.D.'s narration: Oh, no, I forgot the punchline... You can't bail out now! Stall! Stall!
J.D.: ...So the moth says "That's a good question. What kind of dentist are you?" And the dentist says, "Well, I'm a general dentist, but I...I do dabble in orthodontry - braces and such." And... and the moth says, "Orthodontry? I hear there's great money in that."
J.D.'s narration: "The light was on"!
J.D.: "But! To answer your original question, which was, if I think I'm a moth, why am I in a dentist's office? The answer is, Because the light was on!" The light! The light, James. Moths love light. So, James, other than your funny bone being broken, what seems to be the problem?

J.D.'s Thoughts: Wait, is she in to me? Quick, make a bad joke and see if she laughs.
J.D.: Did you hear the one about the skeleton who couldn't go to the party? He had no body to go with.
Neena: That's really funny!
J.D.'s Narration: Well that's not a fair test - that joke's hilarious.