- Everyone in the trolley was mad.
- Mad about what?
- Did it go off the track?
- No. But the cable came off when the motorman put on the brakes so fast.

7 seconds sound clip from the Meet Me in St. Louis (1944) movie soundboard.

You can hear this line at 01:03:47.157 in the DVD version of the movie.

Quote context

[...]

- Oh, that must have happened while he was trying to hold me off.

- I bit him.

- I bit him too.

- Tootie! Tootie, I saw the whole thing! You should've run when I did. You would've seen the whole thing, too.

- What happened?

- When I got loose from John, I ran back.

- There was a policeman and a great big crowd, and he was mad, let me tell you.

- Everyone in the trolley was mad.

- Mad about what?

- Did it go off the track?

- No. But the cable came off when the motorman put on the brakes so fast.

- What have you two been up to?

- Nothing.

- It was that old dress we found. We stuffed it.

- It looked just like a body. A live body, too.

- We put it on the track. We thought when the motorman put on the brakes, the streetcar would go off.

- You're nothing less than a murderer. You might have killed dozens of people.

- Oh, Rose, you're so stuck-up.

[...]