Scrubs S04 E23 My Faith in Humanity

"Laughter is the best medicine... Especially when it's your first day as a doctor."

Turk won't open up at couples therapy. Elliot refuses Dr. Cox's romantic advice, when a very attractive man saunters into the hospital. J.D. learns a lesson in humanity from a dying old woman. The Janitor accidently lets a bunch of rats run around Sacred Heart.