For both sexes.
One last thing, be aware. Always reserve a bit of your attention on your sourroundings. If you get too distracted by what you are doing, it's easier for someone to sneek up on you. If you listen and look around every few seconds, you won't be an easy target. Being aware, you will be able to take mesures to protect yourself BEFORE anything actually happens.
With a sufficient attention level, your would be attacker will simply move on to another, easier target. Most will not take a risk on a target that seems already responding to their presence and intentions.
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