What I think is missing here is what effect the act of seriously injuring or taking the life of another human being will have on your life. Thankfully, I've never been put in this position, and I think the vast majority of folks here can say the same thing. You can train all you want, maybe convince yourself that you'll have no trouble making the right decision when the time comes, but, are you REALLY ready? The difference between you, a law abiding citizen, and a criminal who has no problem pulling that trigger because HE feels disrespected or he didn't get what he wanted is that YOU do have a basic respect for human life. I think this is inherent in almost everyone, and something I think should be the basic part of anyone who decides to carry a firearm.
A defensive shooting, I think, will change your life FOREVER. I hope I never have to go through it, and I hope none of you will, either. I think the legal system will have a pretty firm grip on you for quite some time, and even if you are eventually allowed to walk away and get your firearm back, cheap or not, you will NEVER be the same. I can't even imagine the full spectrum of emotions a person feels after shooting another person, even if justified.
The points he made are accurate and make sense to me. The great, awesome points made of the various mental dynamics and post psycho-analysis of a self defense shooting are accurate and also make sense to me. However, the transition in conversation from Tim's original post and the psychological aftermath of a shooting be more important?
Good read: "On Combat. The Psychology and Physiology of Deadly Conflict in War and in Peace." Lt. Col. Dave Grossman