UPS-truck cadence
Dat delightful "click-kuh, click-kuh, click-kuh, click-kuh..." flashers-relay sound dat you hear when da brown boxy delivery-van is parked in front of your house, instantly throwing your excitement into overdrive in eager breathless anticipation of whatever delightful package that the driver is gonna deliver to your family.
Dat familiar UPS-truck cadence may indeed be an exciting sound for regular residential customers to hear, but da loud cloying rhythm quickly becomes "old" for da driver, since he has to listen to it all day at each and every delivery-stop, when he has to activate da truck's safety-flashers.