My friend and I were about 22 and had just about started working in offices. We were in upmarket shopping area and had an afternoon of giggles, junk food and new outfits, and were on the street looking for public transport home. A car with a couple of middle-aged men swerved and stopped in front of us as we were laughing and chatting. They intruded into our space with obscene gestures and asked us what our rate would be for an evening and night. They ruined our day of girlish fun and my memory of that otherwise sunny day is forever tainted.