As reported, the clerk of a Batttle Creek, MI convenience store used his gun to stop a robber who was armed with a knife:

An robber entered the Liberty Mart in Battle Creek, Michigan and displayed a knife while demanding money, according to news reports.  The clerk reported used his gun to shot the robber in self defense, striking him in the head.  No injuries to the clerk were reported, and a suspect was transported to a hospital in Kalamazoo for surgery.

Once again, guns are a valuable self defense tool.  Unarmed individuals can suffer a terrible fate when a criminal robs them, even if they fully cooperate with the criminal’s demands.  The same is true for those who try to run from the robber.

On the other hand, fighting back against robbers can be quite effective as a means of reducing the risk of injury to the victim. This armed barber shot an armed criminal who threatened him and his son, saving their lives.  This armed pet shop clerk shot an armed robber who threatened a fellow employee’s life, as well as his own life, preventing them both from being stabbed.  This armed pizza delivery man defended himself against 3 armed robbers, and walked away unharmed.  This armed citizen stopped a bank robber, while this armed Israeli citizen stopped a terrorist.