In case of Sonic Attack on your district, follow these rules.....

If you are making love it is imperative to bring all bodies to orgasm
simultaneously
Do not waste time blocking your ears.
Do not waste time seeking a soundproof shelter.
Try to get as far away from the sonic source as possible,
but do not panic.....

Use your wheels. It is what they are for.
Small babies may be placed inside the special cocoons,
which should be left if possible, in a shelter.
Do not attempt to use your own limbs.
If no wheels are available, metal, not organic, limbs
should be employed whenever possible.....

Remember, in the case of Sonic Attack, Survival means every man for himself.
Statistically more people survive if they think only of themselves.
Do not attempt to rescue friends, relatives, loved ones.
You have only a few seconds to escape.
Use those seconds sensibly or you will inevitably die.
Do not panic.
Think only of yourself....

These are the first signs of Sonic Attack:
You will notice small objects, such as ornaments, oscillating.
You will notice a vibration in your diaphragm.
You will hear a distant hissing in your ears.
You will feel dizzy.
You will feel the need to vomit.
There will be bleeding from orifices.
There will be an ache in the pelvic region.
You may be subject to fits of hysterical shouting, or even laughter.

These are all sign of imminent Sonic destruction.
Your only real protection is flight.
If you are less than ten years old, then remain in your shelter and use
your cocoon.
But remember:
You can help no-one else, No-one else, No-one else......