Women have different sensitivity to sound when compared to men. Always have, always will. You all know how you can be doing something and there should be no way a woman could hear when A) you do something wrong, B) something bad happens, even if it's not your fault, C) you say something she wouldn't like or D) you have a thought that she wouldn't like and she's right there to give you grief, right?
They know, man! They know!