Good rule of thumb: Treat each of these girls as you would treat your mother.
6 seconds sound clip from the A League of Their Own movie soundboard.
You can hear this line at 00:59:23 in the Blu-ray version of the movie.
Quote context
[...]
- There's no crying in baseball! No crying!
- Perhaps you chastised her too vehemently.
- Good rule of thumb: Treat each of these girls as you would treat your mother.
- Did anyone ever tell you you look like a penis with a little hat on?
- You're out of here! Right now! I heard that!
- You misunderstood me! You misunderstood me!
- You can't throw me out knowing you've got a strike zone.
- Off this field! Get in that dugout! Get off this field! You're out.
[...]