I live at the end of a half-mile long driveway, It's rough and rocky and can't be driven on without making some noise. There are two gates on the way up to the house. They have chains and both squeak; loudly. After the intruder gets past all this, he has to negotiate the wheelbarrow I left in front of the steps and the steps themselves, which, I'll confess, need some work. He has to do this in the dark since we have no yard light. Once on the porch, there is the dog dish, porch furniture, a pair of boots, fishing rod and other assorted items to avoid. Once at the door, our intruder is home free. The door is never locked.
Upon opening the door, he will awaken the cat, which will start squalling loudly, and the dog. The dog is an Airdale which we cannot break of the habit of jumping up and placing her paws on the guest's stomach. This is almost certain to elicit some sort of vocal response from the intruder, who will soon experience a shilelleagh to the forehead. A few follow-up applications of the stick should do the trick. Then it is a simple matter to fire up the Kubota mini excavator and place the visitor under a newly planted tree, which should do real well, given the nutrients provided buy our intruder. His vehicle will be left on a nearby reserve with the keys in it.
That pretty well describes my home security system, I'm comfortable with it. As I get older, I may have to substitute a shotgun for the stick, but I'm not there yet. WH