This may sound like an off-the-wall question but I was hoping to get nsight into this phenomenon. It's something I've always wondered about. It may have some link to some form of criminal psychosis, that non-criminal minds lack. I don't know.

What makes people with criminal dispositions have less fear? And why do the innocent who have altercations with such people have fear?

Assuming both parties are the same size physically, same gender and there's no weapons involved.

For example I remember reading a case of a gentleman who moved to a new town. He was standing at the railway station when other gentleman of the same race and stature approach him. He asked the man standing there what his name was, where he was from, what he was doing, where he was going. The gentleman trying to be polite answered in vague terms and politely walked away. The other gentleman followed him, eventually tapped him on shoulder and sucker-punched him. Fearful the gentleman held his jaw and ran away. The now assailant chased him. Still clutching his jaw the gentleman made his way through the streets found a taxi and quickly hopped in. The assailant reach through the window trying to grab at him before the taxi sped away.

Why was this assailant not afraid of approaching this man at the railway station? Why was this man afraid of this assailant?

What is it about human psychology that makes some people less fearful than others? What is it about human psychology that allows certain people to instill fear in other people?

Do certain people have more of something psychologically and other people lack certain things psychologically?

Just curious what your thoughts are. Comments?