In 1936, Jean Harlow starred in a multi-part Lux radio play called "Madame Sans-Gene" opposite Robert Taylor. Hours before each episode began to air, a vast queue would form outside the studio at the Music Box Theatre in Hollywood. Seating inside was limited and as many as 1,000 people were turned away. They did not always go quietly...

During a broadcast one evening, the overflow crowd refused to disperse and finally crashed through the cordon of police and into the theatre while the show was in progress.

Incredibly, despite the thunderous noise, listeners were unaware that anything unusual had happened: at the precise moment the riot started, the script had called for a mob scene!