I second the advice given by previous posters. People are strange, crazy and potentially dangerous when provoked. Violence creates negative environments for all involved. Chances are those who were doing the attacking have a hostile environment to return to. Being that the attacks were random, I hope you don't take the incident personally, but I can see how you may feel targeted. Once the initial shock wears away, you are left with life experience and possibly a valuable lesson. Accepting what happened may be difficult but it is totally within your power to move on and better yourself from this experience. I understand why you may feel vulnerable and seek to be in better control of yourself and what is within your power.