Why is it that when a total stranger starts talking to you out of the blue in a friendly manner, that your first thought is "who is this guy and what does he want?"
This innate feeling of insecurity more than likely comes from the old instincts where unfamiliar situations, especially those arising unexpectantly, meant an attack or some other kind of infringement threatening ones survival.
Watch out or else...
Now by nature we have been trained by society to be untrusting of strangers, especially those seemingly "unnaturally nice" ones.
The old instincts combined with the newer one's sure make life more complicated than it was meant to be.
