You have the right to have guard dogs and if the only time they bark is when there is a real rather than a perceived threat - that would be great. However, if they are barking at the guy across the street walking his dog - that's not being a guard dog, that's being a nuisance. If the dog is barking at cars going by - that is not being a guard dog but a nuisance. If the dog is barking in response to another dog barking - that's not a guard dog but a nuisance. If the dog is barking at the neighbor quietly going about their business doing yard work - that is not a guard dog but a nuisance. If the dog is barking at the kids across the street playing hopscotch that is not a guard dog but a nuisance. Besides unless your dog is a free roaming dog - he/she is not going to thwart a burglary if they are tied to a fixed location on your property. If they are in the back that still leaves the front accessible. Or if they are tied in the front that leaves the back accessible. I speak from experience on this one because 20 years ago I was a crook and encountered many dogs - didn't stop me once - even when they were free roaming. And if the neighbors are used to the dog barking when the wind blows - they no longer look outside to see what the problem might be. Be a decent neighbor and a better friend to your dog - get an electric security system that makes all kinds of noise if there's an attempted break-in and keep your dog inside. It's better for the dog, it's better for the neighbors and it'll even be better for you - win win!