Katie,

The company I worked for at the time had a large number of employees, but only a small office staff. This was about the time where a few postal workers had their at work issues, thus coining the phrase. So I got to thinking about what to do, and then talked to the owner of the company about it. We sat down with police officer he knew and we worked out a plan. Basically there were a few of us in the office that were well trained with firearms (including the owner). The plan was after calling 911, he would talk to the person and try to diffuse the situation until the cops arrived. One of us others would be nearby and armed so if the guy did start shooting before the cops arrived, we would respond appropriately.

Fortunately, the only time the incident happened, the owner was able to keep the guy calm and get him to surrender his weapon before the police arrived.