[dogma1138]

>If someone makes others feel endangered

That's a bit stretching it basic threat, management is to judge each threat agent by the level of intent and the ability to act on that intent for the most part the usually aholes don't pose any actual threat. I also don't understand why some one being an ahole for a specific reason is worse than some one being an ahole just for sake of being an ahole, we all had our nemeses over the years people that you just don't click with that do everything in their power to get to you - outplay them, ignore them or move on.