I was going to address this to EricW, as sort of a reply to his post, but decided it's worthy of a public post.
You know, I get a giggle out of those shirts and stickers that say "I carry a gun 'cuz a cop is too heavy" and "when seconds count, the police are minutes away". I don't read them as derogatory, and I'll explain.
The police do a job most of us would not like to do. In so many ways, it's thankless. (I'll take this opportunity to thank GoodtoGo, RichyRich and Palmerc specifically for your service, and any others in general that have not identified themselves as cops.) But, those humorous quotes that end up on t-shirts and bumpers have an underlying concept: The police can't be everywhere all the time. Frankly, we probably don't want that condition, because that would mean our society has likely decayed into a police state.
I fully support my local law enforcement folks, but I don't think our country's founding fathers intended us to rely upon them for everything. First and foremost, my family's safety is put on my shoulders. I actually believe it's a responsibility given to me by God: I am the head of my household, and I am to be a servant leader. (I'm not trying to cram my faith down others' throats, so please don't take it that way) It's easy to say and understand it's my job to teach my kids not to run into the street w/o looking, not to talk to strangers, that sort of stuff. But I also believe that extends to being prepared to fight (if necessary) for their safety. I hope it never comes to that, but you'd better believe I take my responsibility seriously.
I can't help but think that if others adopted that attitude, we'd have a more polite society, (and not out of fear, but out of respect) and we'd certainly have a safer one - and we'd be able to enjoy that increased safety, while maintaining more freedoms. Keep in mind that you can't count on freedom and peace at the same time, its almost always an either-or kinda deal, unless we each use that freedom to take responsibility for our own safety. And, to be clear, I'm talking safety, not justice. This concept is separate from a functioning justice system, and should not be confused with vigilante practices. Defense, not vengeance.
But, all that said, strapping a hog-leg to your hip doesn't make you Wyatt Earp, just like a mohawk doesn't make you Chuck Liddell, and a cookbook doesn't make you Emeril Lagasse. You must educate yourself, and practice. Part of that includes deciding beforehand to what lengths you are willing to go to defend yourself, your family, and even a stranger; and these levels may be different.
best wishes to you all,
PE