Hoodlums take note

And there's this:

"If you see any threatening hoodies heading towards you, just click it on and release the music." The youths are unable to cope with the strains of Mozart and Bach, hands over ears they retreat back to their dark corners to recover their ears with "hip hop", but it is enough, the classical music has done it's job and one more OAP is safe.

Sadly it's probably not much of stretch...

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