You're like a human electron microscope, Wolfgang. ;-)

Naturally we are in more danger from those we spend more time around! We have far more opportunity to make them become hostile towards us, and vice versa.

Why, for example, would I kill a complete stranger? He hasn't been making my life hell for the last 10 or 20 years! Also, I don't really have any expectations of him. Now if he was in my family...well, that's different. Then the chances of him making my life hell rise considerably, don't they? And my expectations of him or her can also become quite unrealistic, can't they? People tend to kill family members because they lose control over some longstanding (and seemingly unresolvable) issues that have built up to a pressure point.

As Rapaire points out, "Some people (if I can call them that) are unfit to live with others or in society." Yes, some are...but they were not born that way, and they didn't become that way overnight. Given a set of different influences and circumstances in their early years, they might have grown up into people entirely fit to live with others in society.

Therefore, I do not judge them (in terms of their intrinsic worth as human beings). I judge their acts. As a law enforcement person I would deal with them accordingly, precisely as the law dictates, and on the basis of their acts. Protection for society by incarceration. Enforcement of the law. No revenge for the sake of revenge.

I understand revenge, I understand why people feel that way, but I think that when they let that feeling control them they lose their own humanity in the process. I realize, however, that there's an entire Hollywood action movie industry and a few billion people out there who don't agree with me at all on that... ;-) Well, that's life.