Without in any way wanting to trivialise the threat to women, people seem to forget - men are also at risk. When I was at university in London, there was a spate of cases of men being raped. It isn't just a female phenomenon.
Its the same with assault - women worry about walking home alone late at night, but men are 5 times (IIRC) more likely to be attacked.
My experience of late night post pub brawls is that even some of the nastiest, ugliest brutes wouldn't think of hitting a woman, yet they'd happily keep kicking you when you're lying on the ground helpless.
