my two cents. I was reading through most of the postings. I had my own experience with being broken into.
We came home from golfing and found that the house was broken into. I retreived my Glock from my truck to investigate the house, while my other half called 911 to get the police. While inside looking around, the perp came across my deck to attack my girlfriend. She screamed and and I immediately ran to intervene. I ran smack into the guy in my door and a struggle started over the gun. We fell to the deck and I landed on top of him, hitting him as hard as I could, but he kept trying to grab my gun. I was running out of options, so I ended up shooting him and killing him.
Fortunately, I had cameras that caught everything. From the break in to the fight, to the shooting. Under the "Castle Doctrine" I was justified in my actions. Since then, we installed a ADT security system. Having the system would have warned me of the break in before getting home, I could have turned on the cameras with my smart phone, and the police could have been there before me to avoid all of this.
Remember, locks only keep out the honest crooks. Security cameras will capture what ocurrs, alarms will deter and give early warning. The police will arrive after the fact. Having the right to own and use the firearm saved my life and my girl friends life.
After that word got out, I doubt anyone will bother my house again.