Our next door neighbor breeds and sells Rhodesian Ridgebacks. For people who don't know that breed, it is very aggressive and used to hunt lions. The neighbors use a wireless fence AND a wired fence to keep the dogs on their property. A couple of years ago (before I lived next door), the dogs attacked and nearly killed a Terminex guy who was treating the property. The neighbors justified the attack by saying that the guy crossed the boundary into an area where he shouldn't have gone. That's probably a grey area that could be argued from both sides. However, just a few months ago, our OTHER neighbor who is 93 yrs old and severely handicapped was driving his golf cart (as he does nearly every day) down the street and the dogs came after him in the street. I guess the batteries were dead on their collars for the wireless fence, not sure.... But they bit the old man on his golf cart. Normally he has his small lab mix with him. If she had been with him that day, I'm certain the dogs would have killed her. I don't believe the old man ever reported the attack. Personally, I would have reported it. My husband works for the Health Dept and is responsible for handling dog bite cases in a different county. If ANY dog is a threat to the surrounding community, it should be contained like a dangerous animal such as a big cat, bull, or other similar animal. If those dogs ever jump the WIRED fence between our properties, they will be dead dogs.