Why Is a Heading Like an Authorities Siren?

We all know the disconcerting shock of seeing the blinking lights and hearing the piercing scream of a police wagon, fire vehicle, or ambulance, as well as we all know what to do when one of these automobiles enters our hearing and also visual array. We pull over to the curb and stop promptly. That’s exactly the reaction we, as marketing professionals, intend to create when composing headings for our advertising product.