So my wife's care got broken into by some inept thieves a few months back. They took her aftermarket radio, with nice pop tabs for easy removal, by breaking the radio trim with a screwdriver. I finally got the replacement parts and the time to fix it this weekend. I was greeted by this clusterfuck of hillbilly alarm wring. The same night I fixed it people broke back in and rifled through the car. Obviously now she keeps nothing of value in it, but this just pissed me off. One of the power door locks does not work, and I'm pretty sure forgetting to manually lock this door was likely the entry point. Luckily I have a background in the military and blowing stuff up in general. I'd like to wire a flashbang simulator (Pyro if legal (Blast shroud to direct heat and pressure out of car), else wise the best alternative) to the door with the manual lock. Since the device would only be triggered by someone intruding into personal property, and the device would be non-lethal and conform to minimum safe distances, would it be legal? It's not really different than a car alarm, other than my replacing the siren with a more effective noisemaker... I personally think that after repeated attempts, they deserve to crap themselves thinking they just set off a mine.