This Domino's delivery man in the Netherlands has to deliver on an electric scooter which makes absolutely no sound.  Since he has to move much faster than everyone else to get the pizza there on time, he had to create a safe way to let people know he was there.

He did that to perfection.

In the Netherlands bikes outnumber cars and pretty much everything is electric or human powered in the street.

So instead of getting an annoying horn or sissy bell, this driver decided to create his own scooter sound effects to let other people know he was around them.

Domino's Scooter Driver