I'm not sure exactly what you are getting at, but generically, I would say that your weapon can be used against you a lot if you don't educate yourself on how to handle and care for it. In other words as often as you allow it to be used against you.
It's a highly emotive term, often used in propaganda, but at face value it would mean a state using undue, gratuitous and indiscriminate force against its own citizens or foreigners, as a weapon of state policy.
The warrior class is a weapon, one wielded by the ruling class, and is often used on their own people to maintain control. On occasion, however, the weapon can be turned on the master, in a coup d'etat.
Provided that it cannot fire, and that it is not 'brandished' or displayed in the manner that a real weapon would be used, no.
Depending on your definition of 'weapon' everyone owns a weapon.
Not only did Germany fun the Bolsheviks propaganda, but they continued to support them when they came into power in order to push forward their own agenda. This served the German purpose since the Bolsheviks were against the war and could be used as a demoralizing weapon against the Russian Army. .
Treason
You can not create your own weapons
No
Slaves were not allowed to marry at their own free will. They were often forced to have children for their masters, even against their own will.
It is difficult to provide an exact number, but estimates suggest that around 30-40% of American households own a firearm. This translates to tens of millions of individuals owning a weapon in the United States.
Beowulf kills Grendel's mother by using her own weapon, a giant's sword, against her. This is ironic because he defeats her with the very weapon she was planning to use against him. Additionally, he avenges Grendel's death by killing his mother in the same manner that Grendel killed Hrothgar's men.
You don't ever craft your own weapon, as such. Some missions make you find four components of a weapon, and then the 'completed' weapon is given as a reward. But this weapon is simply drawn from the usual random loot table just like any other weapon.