yacr85 – just wanted to mention that your analogy was very cool. I like your creativity.
Just a side, additional answer to your comment about covering the knees not being a comparable y”h – did you notice how many people are NOT covering their knees? Did you notice how many wives in kollel lives expose their knees? Did you notice how many rebbetzins expose their knees? Does this give you a mild clue to how strong that Y’H is for women who just CANNOT STOP THEMSELVES from exposing themselves inappropriately (I am talking only about those who know they should and wish they could).