Fubar231, you are what's is wrong with the outlook on topics like this. You're probably always the victim of everyday life, and things just aren't fair.
There are three things to look for in a threat situation. Howard, usually talks these in our classes. Intent, means, and ability. If you have two of the three in a situation, you are usually in harms way. Just one, and you should be able to mitigate the issue, without killing the other person. Careless, no consequence, for pulling the trigger just isn't out there anymore. It's pretty difficult to justify pulling a trigger without all three of the above mentioned, Cop or not a Cop.