Created by Train Horn
Apparently as we get older we are unable to hear certain frequencies so some people utilize this noise to bother teenagers and deter loitering.
I've always claimed that I still think I'm twelve...I love guitar hero and rock band, 13-year book series (Twilight, Harry Potter). People think I'm just immature, but now I have proof that physiologically I am still a teenager....That argument holds up, right?!