What this means is that instead of copper being metabolized, it gets stored inside the liver and when there is too much, the liver fails which in turn, slowly causes the death of the dog. Bedlington Terrier". Health Bedlington Terriers are generally healthy, but like all breeds, they're prone to certain health conditions. Usually they can get along with other dogs , but keep them away from those that want to dominate, as once challenged they are terrifying fighters, despite their gentle appearance. They love to be the center of attention and will play the clown to get it. The recent development of a DNA test makes it possible to screen for affected dogs and carriers and remove them from the gene pool.