Actually the most effective way is to attack the rapists'
privates, thou you have to make sure you get a good hit in and
cause enough pain and damage that chasing you will be the last
thing on his mind.
Previously another lady in Malaysia escaped rape when she simply
grabbed her attacker's privates, bent it and broke it. They later
caught that guy in the hospital when he was seeking medical
attention for ruptured privates.
