Chris one thing i learned working in a prison, bad people have brains and can use them fairly well and they don't usually let the victim determine the rules of the game. Face to face is more than likely going to be your only option.
Funny thing i live in Wyoming it ranks at the top for states with the most guns per capita of any. I never carried until a few years ago, never felt the need. Now once in a great while i carry in town but always when traveling and always out in the sticks. Most folks here are the same as me. Most of what you folks see and hear on the news comes from the cities not the rural areas of the country. Now if i lived in the cities prolly a thumper and a shooter too and with my American bully at my side. We are truly being overrun, its a sad situation here.
For you folks who work in an office , this works too!!!! just open it up and start swinging.