I still fail to see how "fight or flight" applies here. I have no doubt that being hounded by the paprazzi is unnerving, but they are not there to attack her physically...they are there to take her picture. Again, I have no experience with that, so I do not know exactly what that feels like, but I doubt there is a rational fear of being physically harmed, like Caradana's fear of the homeless man coming at her last night.