Aaaaah Yeeesss- can imagine that happening just as you detailed-- Old W.C. and the late Dorothy Parker both were "outspoken" and often used the "F-Bomb"-- and somehow, seemed to get away with it, even with the Hollywood censorship of the 1930's--

I believe the "visitor" was indeed, Darryl Zanuck- not sure what movie he was producing back then-- My Fav. is "My Little Chickadee" with Mae West--

"The field is the touchstone of the man"..