My uncle had two first xs a dog and a bitch. The bitch was re-homed to his mate as a pet, because she was a yapper. The dog was and still is his best mate, about 12 years old. Its the hardest little dog I've been around. Lives to kill, not interested in attention or anything other than killing. Jet black wirery haired racy thing. He has killed everything from rats, ducks, cats, rabbits, hares and foxes. He killed about 50 foxes in his time. Well past it now, looks like a fat old collie.
One man dog. Tough as f**k.