It's not okay to threaten people in life.
Charles is a poor, muscular man who needs to buy food for himself.
Charles wants money to buy food.
Charles takes up a job at a shipping dock that requires lots of muscle.
Charles hides in an alley and robs people at knife point as they pass by.
Charles earns decent wages and has money to survive.
The people lose their money and report Charles to the police, who then put a warrant out for his arrest.