Really, no kidding? You don't say!
I distinctly remember a woman (who shall go unnamed) tell me
"Yeah, I used to nag, but it doesn't work."
Which told me
"OK, so you women KNOW what you are doing when you nag and it isn't just some 'thing women do unconsciously?!"
I think a new slogan for a PSA announcement might work -
"Nagging - It Gives You Permission to Cheat on Your Wife! THe More You Know!"
Methinks that would bring an abrupt end to nagging.