So is a drag considered teathering?
Livestock Guardian Dog Won't Stay Home
To fix this problem one needs to go back and teach the dog that under no circumstances can they cross fence lines and while doing that help re-establish the bond with the livestock. Retrain the dog to electric fences or alternatively, you may opt for attaching an object to the dogs collar that is light enough to drag but awkward enough to prevent the dog from crossing fences or going too far. A common object is a small rubber tire.A triangle collar will also deter a dog who slips through the fence.
source: Ranching with Sheep: Common Dog Behaviors Witnessed with LGD's
