Fake Crosswalk Car Crash Prank

First you are going to need some big speakers. Then you need to record the sound of  a car accident. Now hide the speakers near a busy crosswalk. Turn up the volume and wait for people to cross the street.

When the person or the people are passing right through the middle of the street play the car accident sound.

That's how to make a person believe he or she is going to get ran over by a car.