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Explanation: While all robberies are felonies, the use of a weapon tends to bring about stiffer penalties. While all robberies are considered violent crimes, it is not uncommon for states to upgrade the class of felony if a weapon is used in the commission of a robbery. That means the person who is robbing you is risking a much greater prison sentence if he is caught and convicted. And this doesn't bother them.
The weapon of choice is a gun. It is fast, easy to get and, since most robberies happen at point blank range, requires very little training to hit the target. All the robber has to do is point in the general direction and pull the trigger until either he runs out of bullets or you are on the ground screaming in pain. Guns make up for 40% of all robberies with knives and other weapons making up another 20%. Again these numbers are a national average that incorporate every kind of robbery.
Needless to say, guns, knives and other weapons make up a hundred percent of all ARMED robberies. And weapons are the norm for robberies of establishments.