You shouldn't have.

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

You can hear this line at 00:40:50 in the Blu-ray version of the movie.

Quote context

[...]

- Mother, why don't you go to Florida? Four weeks in the sun, baking your chest.

- Don't you insult her. I... Mother! Come in.

- Hi, buddy, how you feeling?

- Come on in, Boom Boom.

- I brought you a present. The boys on the team chipped in, and we got you this.

- You shouldn't have.

- It's electric. It's got three speeds, left-hand drive, white sidewall tires, a safety belt.

- That's some chariot. Do they make a two-seater?

- You already got a Mustang.

- And here's a little idea I had. You can mount it on the chair, and any time you need something... (blows horn) -Oh, don't!

[...]