Sounds like the guy is off more than a little bit. Cat folks are generally a bit different. My only neighbor has a boat load of cats...I've never seen him in daylight and he's never come to the door when I've knocked.
I hate to shoot a dog, but if one gets in a pasture it's dead. Now it'd have to slip through 7,000+ volts to get in there so it doesn't happen often. Once in, it only takes a minute to kill thousands of dollars worth of stock. ...but I think it's a bit different than what happened here.
