This is a very important safety tip for obvious reasons. It is always best to have your cell phone charged when you're out, but it is more important when you are in "unfamiliar terrain". Now as I have stated, this is not to go to extremes or to strike fear into as many hearts as I can. It's just a call to keep alert, at least until you have gotten to know the person. Now I know what you may be thinking, this isn't for me, but it is. Man or women, I know a lot of guys would be thinking that this is crazy, but there has been more than one serial killer that was a woman. OK that IS an extreme, but hopefully you get the point. None one is invincible - no one.