A while back, I witnessed the effect that Letha Weapons (or her clone) has on the public at a microbrew place in Burbank. I think I did a BEhavior sighting story on it, but don't recall the issue.
Living in LA for years now, I too see what are most certainly adult stars either around town or leaving/entering non-descript houses in the Valley (and sometimes even Hollywood) for what would appear to be either the start/end of a day of porn production or perhaps just personal entertainment. To be honest, they all look blonde, implanted, too-heavily made-up and in bad moods... all look the same to me. I can almost never put a name to the face or figure, unless they're really distinctive like Letha.