im a fire brigade driver in london and we are taught when in heavy traffic to turn the sirens off if coming up to traffic lights so not to cause pannic and push people through the red lights.. some idiots do the most stupid things .. the worst is bikes trying to follow through heavy traffic.. some of our trucks are not worth pulling over for as they struggle to get to 30mph flat out and even slower up a hill.. people move out of the way far more for the police than they do for us...