I want to put up some electric wire to keep my dogs out of the chicken yard. Im not looking for poultry fencing to keep chickens in - I want to keep dogs out. I'm thinking common charged wire at 6", 12", and 18". Dogs touch it with their nose, get the shock of their life and run off howling. I in turn, clap my hands in glee, reveling at the scent of fried dog. ** But for once I really dont want to get into a long research project, here. I'm interested in a simple charger and wire set up for a pen about 90 feet long by about 20-30 feet wide. Lets call it 3 wires charged over 500 feet, just to err on the side of prudence. Solar power is nice, but not neccessary. Low cost is desirable Has anyone done this in a backyard? ** You may recall that my own dogs have killed 2 flocks in the past. Since I don't intend to shoot and barbeque the dogs (although I've considered it), we're upping the ante on deterrence here.