https://medium.com/ill-ixi-lli/i-am-a-professional-predator-thank-you-for-your-constant-distraction-587cfc5b6017#.tsqr7uwph

“Also, if you’re female, and out on the street, you might want to think seven times about what kinds of signals you are sending, and who is receiving them… when you are staring into your cellphone instead of paying significant attention to your surroundings, ambient threats, opportunities for safety and comfort, and other features of circumstance that will actually pay benefits for attending them with awareness. The world is dangerous enough that vigilance alone will not protect you from all threats, but it will reduce your presence on our radar to the degree that most of the professional predators won’t select you, and that’s a strong enough benefit to move the odds in your favor, especially in busy, urban situations.”