Sometimes things hit you between the eyes.  That happened for me recently when I attended an event at the Stamford Yacht Club.  The observation happened as I was going to the restroom!

At first it was just something I noticed.  But then I realized how
this one thing could have big repercussions.

What I saw on the door struck me.  The sign read 'Gentlemen.'  That's not the word you typically see on a restroom door nowadays.  Usually there's just the plain word "men."  Or in other cases the iconic avatar of an amorphous male figure so that words aren't even needed.  No, the word here was  'gentlemen.'