Technician Accidentally Fires Vulcan Cannon And Destroys An F-16 On The Ground In Belgium

A negligent discharge from an F-16 ? The Science of Stupid happened this week in Belgium. I'm sure pilots and maintenance technicians alike can tell me how easy it is to do this by accident. I'm sure it's normal for planes to have ordinance on board. are there circuit breakers you can purposely turn off to make sure this is not happen? I don't know about Belgium's operational rate but had this been the German luftwaffe, that would have been 10% of their remaining flyable Air Force.