Not because of danger. A matter of efficiency.
5 seconds sound clip from the Leiningen Versus the Ants (1948) classic radio play.
You can hear this line at 00:09:09 in the radio play.
Quote context
[...]
- Unless the ants know how to build rafts, they won't reach the plantation.
- This is only the outer moat. There's a better one than this.
- I didn't see any women or children around the plantation, or any animals.
- Yes, that's right. Moved them across the river.
- Then even you think there is danger?
- Not because of danger. A matter of efficiency.
- Yes, cuts down on the efficiency of the men if they're worried about their families.
- Critical situations only become crises when oxen and women get excited.
- I see.
- Ah, here we are. See this ditch?
- It's much smaller than the others.
- But even filled with water, this is no barrier. It's not big enough.
[...]