One thing I hate is a patient who makes his own diagnosis.

— Whiplash Willie Gingrich (Walter Matthau)

4 seconds sound clip from the The Fortune Cookie (1966) movie soundboard.

You can hear this line at 00:15:25 in the Blu-ray version of the movie.

Quote context

[...]

- You're crazy. I can move my hand and my leg.

- Sure you can, if you wanna blow a million bucks.

- What are you talking about?

- That's what we're suing for. They'll offer us $100,000. We settle for a quarter of a million.

- I gotta go to the can.

- Stay where you are. I'll bring it to you.

- What are you tryin' to pull? I'm perfectly all right.

- One thing I hate is a patient who makes his own diagnosis.

- This is ridiculous. There's nothin' wrong with me.

- That's what you think.

- Not only can't you move your hand and your leg, but you had this concussion, so now you've got a ringing in your ears and double vision.

- How many of me do you see?

- One. One cheap, chiseling, shyster lawyer who, of all people, had to marry my sister.

- Nice talk. I'm handing you a quarter of a million dollars on a silver platter.

[...]