KEY POINTS:
A suburban amusement park has had so many complaints from neighbours about bloodcurdling screams that it has instituted a no-shrieking rule for its scary new ride, the Scandia Screamer, a gigantic, windmill-like contraption that sends people plunging 16 storeys at nearly 100km/h.
Riders who let out a screech - or just about any other noise - are pulled off and sent to the back of the line.