It wouldn't hurt to put it in.
4 seconds sound clip from the The Thin Man (1936) classic radio play.
You can hear this line at 00:29:12 in the radio play.
Quote context
[...]
- Well, what are the chances of you doing it?
- Slim.
- I wish you would, Mr. Charles.
- Would it help any if I could persuade him to meet you?
- It wouldn't hurt to put it in.
- I'm sure you could clear this up.
- If he would only came back. It doesn't look well. his staying away at a time like this.
- Yes? Oh? Just a minute. For you, Mr. Macaulay. Police department.
- Hello. Where? In Allentown? Yes.
- When is the next train? Right. I'll get that.
[...]