I watched the old 1998 movie, As Good as It Gets where Jack Nickelson plays a guy with OCD.
I love the scene when he barges into his psyhicatrist's office after two years with no appointment. The psychiatrist refuses to see him until he makes an appointment:

Melvin Udall: Hi. Help!
Dr. Green: If you want to see me, you will not do this. You will make an appointment.
Melvin Udall: Dr. Green, how can you diagnose someone with an obsessive compulsive disorder and then act like I have some choice about barging in here?


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The movie ends happily. Nickelson finds a girlfriend and gets on medication.

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What is your favorite movie line or scene?


M