Monopoly of Violence

Only the gummint should have a monopoly on violence.

But wait.  I am the gummint.  Government of the people, by the people, for the people and all that.  If I wasn't the gov't then why did they ask me to serve in that function by registering for selective service only mumble-mumble years ago?  Or call on my to serve on a jury?  Or asking me to vote?

Seems like I retain part of that monopoly.

And yes yes.  It's the monopoly on the initiation of force.  Every living thing in the world has the right to defend themselves, of course.  It's just in some countries where the people are part of the system, instead of just subjected to it.