Greetings, people. It's been forever since I've been on here. Had a really busy season. Anyway, some time ago I posted about my efforts to invent a theft protection system for trailers that would involve an alarm sounding the instant someone touches it. Well I've outdone myself with something that I did not invent, but works wonderfully (so I will not take credit). How many of you know what a capacitor is? For those of you who don't, a capacitor looks like a small battery and stores a charge like one too. However, unlike a battery it releases it's charge completely and instantly. If the charge is released into an individual (READ: Thief) it will give quite a shock, and if over 300 milliamps--it can kill. So guess what I did? I outfitted my trailer, equipment, and storage shed with these devices like crazy. I got mine for free from people giving away broken PCs on Craigslist. I simply disconnected them from the motherboards. I found it best to charge them with wire lead extensions connected to rechargeable 9V batteries. Just be careful not to overcharge the capacitors, or you risk having them explode.