Thank you for the information on what we should do when we hear and see you coming. One thing that I have experienced only one time was when a police car was racing to an emergency and there was a lot of traffic. You could hear the siren, but you could also feel these like vibrations or pulses as well. That really got my attention. It would definitely be effective if someone is blaring their music and might not hear the siren, but would feel that pulse. It was pretty cool.