Ladies, when bathing, are not half so gay! While men sing or whistle and then sing again.

9 seconds sound clip from the You Can't Take It with You (1939) classic radio play.

You can hear this line at 00:24:16 in the radio play.

Quote context

[...]

- Yes, I should like to tell you about a conversation that some of us had last night.

- We were sitting around a table at the Brown Derby, when someone brought up the subject of how men differ from women in their attitude towards the simple things of life.

- For instance, men don't like plays that are sad as much as women do.

- And men sing in the bath. That's right. And we've made up a little song about that which we think is cute. Want to hear it?

- We certainly do. Go ahead.

- Here's what we've heard nearly everyone say. Women are different from men!

- Ladies, when bathing, are not half so gay! While men sing or whistle and then sing again.

- If they're Irish, the tune goes like this... If they're Scotch, here is one they won't miss...

- Maybe they'll whistle and you will hear... For men are always full of good cheer...!

- That's enough, girls, that's enough. You've proved your point.

- Men do sing in the bath tub or shower. And it's up to the wise wife to see that this happy mood isn't broken.

[...]