this is a project that gives an idea for a "rape prevention device".
its not real, nor is it going to be, and it is more of a societal reflection. It is also intended to bring awareness to rape victims. I found it on a blog that said "In response to the frequently asked question, "when should I wear Rapex?" they answer: "Should you have to travel long distances alone, on a train, working late, going out on a date with someone you don't know too well, going to clubs, or in any situation that you might not feel comfortable or even just not sure." So, if you like getting drunk, wearing sexy clothes, or going out in public, you might be at risk." Interesting points!!!

http://www.femdefence.info/index2.html