Yeah, they suggest to rub bacon on the wire so they sniff and lick it. Ouch! I got shocked by accident today. I thought the power was on so i flipped the switch. Then touched the gate. Apparently it was off so i switched it on. Won't make that mistake any time soon!One person tossed lighted fire crackers in the direction of a bear - it headed for the hills. After a few repeats, if it just saw the person step out of the house, it took off without the fireworks. Electrified fence would have to rather high powered. The heavy fur on bears insulates them. They need to touch the fence with their noses to really feel the earth move.