While we encourage supporting our cause via conventional means (such as shooting in the air, shooting at Jews, or kidnapping foreign journalists), we discourage you from whistling.
Besides the fact that whistling is an evil habit (mostly prevalent at infidel construction sites and strip clubs), whistling for a prolonged period of time may also cause lasting disfigurements, such as loss of teeth and gums.
This, in turn, will lead to the only measures we can implement to react to widespread whistling damage amongst women (Beards are sufficient for men).
This has been a Fatah public service announcement.
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Next public service announcement: The Dangers of Red Ink Abuse