Oh that's got to be frustrating with neighbors like that. I worry a bit about some of my neighbors too but so far have not had problems. I'm glad you get some peace of mind from your setup, I bet you have it right. I hope that it will help bust the scumbags next to you someday. I can tolerate alot of character flaws(and I have many) but being a stealing, lying, drug dealing thief is not something I'd tolerate for a second.
My view is a bit different. All that ever happens when you catch guys like that red handed is they get off scott free. Or they spend 6 months with, a few real hard Cores that teach them how to be better crooks.
Gotta scare them to death. Really really bad things will happen if you break into that place over there. If you manage to live and survive the ticks, raccoon round worms, and bird fleas my booby traps will cover you with, you will be featured in recorded coverage all over the Internet for your mother, grandmother, and all the world to see.
Lastly, everyone around here knows that the old man who lives here isn't afraid to die and his wife's family is from Sicily.
The guy who lived here before us was broken into once a month. We are 10 years with no incidents except a really really bad reputation. I've heard some of the rumours people have spread. I'd be scared to death of that guy myself. And if I ever got caught, I'd call the police myself before I was blinded by the bird mites.