Some may object to me calling hold up men "the enemy". You can call them whatever you like. I can assure you however they are as deadly an enemy as you will find anywhere but the battlefield. Even many soldiers probably lack the viciousness and utter disregard for life most hold up men possess.
No one wakes up in the morning one day and decides to become an armed robber. It is a gradual process that requires some experience and desensitizing. Before a man will pick up a gun and threaten to kill people who have done him no harm in order to get their usually meager possessions he has to get comfortable with some things.
He has to get used to seeing others as objects for him to exploit. He has to accept he may be killed while robbing. He has to accept the felony conviction for Robbery will haunt him all his life. He has to accept he may need to kill a completely innocent person to get away with his crime.
This is a process that starts with stealing candy at the corner store as a child. It progresses through bigger property crimes that may also involve violence. But one day G gets tired of selling his stolen property for nothing and decides it would be better to steal cash. Cut out all that tiresome sales stuff.
Keep in mind many petty thieves, auto burglars, residential and commercial burglars, paper thieves, and hustlers will get to that point and decide not to become armed robbers. Most will. It is a special group of outliers who decide threatening to kill people for a few dollars is the way to go.
Once a man starts armed robbing he has crossed a line most won't. Don't forget that when you are looking these bastages in the eye. Their decision to kill you is already made. Your life means nothing to him. Only his does. His sole motivation for not killing you is he doesn't want a murder case. He has already accepted he may pick one up though.
We hunt hold up men around the clock once they are identified. We send teams of fire breathing fence jumper/door kickers to find them. We will bring their mother to the office and convince her she is going to jail if we don't have Junior in our office in an hour. We have her call her son crying hysterically for him to turn himself in before she is arrested and held without bond as a material witness and her home seized for harboring him. Most of the time they won't. $## their own momma.