It's apparently "so easy a caveman could do it." But lets face it, folks, there ain't nothin' that's going to keep out a determined home invasion specialist. Yes, you can put a better lock on the door. But there's always windows. And walls. When i lived in Philly, our neighbor across the hall got broken into and had all her valuables and some of her furniture stolen - the thieves had simply managed to get into the hall, and then cut a large hole right through the drywall.
Now, the nice folks on the video clips mentioned "pets" as a potential deterrent. That's sorta what I thought, and I had a discussion about this with someone a long time ago. "You need a big dog," she said.
"Are you kidding?" I replied. "Anyone who breaks in to a house where there might be a dog is going to know how to handle a dog. All you'll end up with is a dead dog. No, I have a better idea."
See, here's how it works. You get a dozen or so rats. Not the white ones. The brown/black ones. And then you train them. Every time you walk into the house, if they come running up and climb up on your legs, you give them a treat.
There does not exist a Home Invasion Specialist who will not flee a house when the rats start climbing up his/her legs.