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
simultaeneously
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 practical

Remember, in the case of Sonic Attack, Survival does mean every man for himself
Statistically more people survive if they think only of themselves
Do not attempt to rescue friends, relatives, or 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 yourselves

These are the first signs of Sonic Attack:
You will notice small objects, such as ornaments, oscillating
You will notice a vibration in your vertebrae
You will hear a distand 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 lese, No-one else