I've recently realised that I walk past groups of rowdy men very sheepishly if they have started doing the whole wolf-whistle thing as I approach.
I'm not attractive so I imagine they are doing out of sarcasm but I've got to the point where I want to be able to walk down the street without worrying that someone is going to comment or whistle. Sometimes I have the children with me and they still do it?!
I want to be one of those strong women who challenges this kind of behaviour - give me some comebacks!