Being a therapeutic radiologist (bad guy?)
You see as I said above that the technique is not the true measure, but the intent and purpose. The pencil can be used to write good stuff or bad. The bullet is never the cause of death — but the guy who pulled the trigger. Radiation has hardly any good use I can think of — at least in the hands of man. Guns are not bad — people are. And “people” is, already, too much of a generality.