Don't do that you dumb bitch!
Why do women, when they think some unsavory male, or a minority person is following them on a poorly lit street reach for their cell phone and hold it to their ear as if talking to someone. If the guy is going to grab you honey don't you think the first thing he'll do is slap your phone out of your hand? It's like your holding it out for him to do so. Cross the street and face the guy THEN snap the cell out, always having 911 on speed dial. Usually it's just paranoid panic anyway. But protect yourself by being cool, calm, and show some balls. I think that would be the normal thing. Wouldn't it?