It's a well known fact that when a woman sees a bald man from the back, she immediately associates his gleaming, bare scalp with the head of penis. If the man turns around at precisely the right moment after the association, the woman's psyche, without her even being aware of it, takes that association a step further and assumes a natural virility and sexual prowess on the part of the male in question. Sex is pretty much a guarantee at that point, which is bald men with any self-awareness always stand where they can use their natural surroundings (mirrors, windows, etc.) to see what's going on behind them. You don't want to turn around at the wrong moment, after all (and sometimes it's best to let some of the women just slip on by).