I was describing my fear about a security guard at old-work displaying interest in me, and my (otherwise excellent) friend asked whether I was more or less fearful than other women. I am generally less. He was incredulous, and we started talking about our background level of fear/sense of safety in any given situation. He was so blown away by the idea that women in general have a strong feeling of unsafeness in so many common situations where he would feel safe.

Hilariously, he has himself experienced street harassment as a woman, just the once. He has very long and beautiful hair, and someone yelled after his back, clearly seeing the back of a woman. He made the calculation that he would be in danger if he turned around, so he got out of there quickly. I don't think he had applied this more generally, though...