What To Do When A Co-Worker Threatens Your Life

I once had a co-worker who was rather weird. He would go around while the other employees
were working and use his unfolded Swiss knife to poke them in the back. Of course, this
annoyed and even frightened some employees. So we got together and told the boss that we
wanted him out of the company. The organizational development admin supervisor took aside the offensive employee. The
weird guy started shouting that he could murder the entire company if he wanted to. So with
that, he was terminated and banned from company premises.