Note this is on a law enforcement magazine. Robber (with history of robbing in the past) displays gun. Store employee defends himself legally. Store has very nebulous weapon policy. And....the family of the deceased is outraged. My guess is their feelings are less about their dear departed...

http://www.cnn.com/2013/07/26/us/gun-robber-armed-with-bat/index.html 22 year old Oregon man attempts to rob a Gun store with a Baseball bat and a knife. You can probably guess what the outcome was. :p