Ladies, why do you put your loose strands of hair on the shower wall?

Maybe it’s just the women that I have had relationships with, and the ones that I have asked about this along the way…. But why, oh why, do you insist on doing this? There’s nothing like hopping in the shower and looking to your right or left and seeing what looks like enough hair for a toupee sitting on the wall. I realize that this is something that I am going to have to deal with for the rest of my life. I’m quite certain that I have little habits that my wife has wanted to strangle me over. I’m just trying to understand. :) Ladies? Gents even, any input?