There was a woman doctor who made a device which can be inserted into a woman which has blades that clamp onto the rapist. It can only be removed at the hospital.
I didn't remember where I had read about it but here is a link to an article which speaks of the same thing.
If a woman feels threatened she can use one...
Rape: now women get the chance to bite back
A device that clamps razor-sharp barbs onto rapists’ penises is causing an outcry among South African feminist groups
BY Elaine Hake LAST UPDATED AT 01:00 ON Wed 4 Apr 2007
The words of a rape victim - "If only I had teeth down there" - have inspired the design of a new anti-rape device. Rapex - dubbed the 'rape trap' - is a product worn internally by women. The hollow inside is lined with rows of razor-sharp hooks, which are designed to latch on to a rapist's penis during penetration. They can only be removed by a doctor.
Read more: [
link to www.theweek.co.uk]
Remember that a gun can always be taken and used against you if you cannot handle it properly.