I have been flashed, groped, had disgusting verbal abuse shouted at me. Whistling and kissing noises are not as threatening as someone actually in your personal space or threatening you with sexual violence.
Having read this blog these menaces are more of a problem than I thought. I have often been tempted to shout back or even throw a straight right but I am too scared and instead ignore the culprits rather than risk even more abuse.
Location: Lewisham Way, Deptford Broadway, Norwood Junction, Various SE London