The Old English Sheepdog (OES) is a large breed of dog that emerged in England from early types of herding dog. Obsolete names for the breed include Shepherd's Dog and bob-tailed sheep-dog. The nickname Bob-tail (or Bobtail) originates from how dogs of the breed traditionally had their tails docked. Old English Sheepdogs can grow very long coats with fur covering the face and eyes and do not shed unless brushed. The breed standards describe the ideal Old English Sheepdog as never being nervous or aggressive. The New Zealand Kennel Club adds that 'they are sometimes couch potatoes' and 'may even try to herd children by gently bumping them.' This breed's temperament can be described as intelligent, social and adaptable. The American Kennel Club adds that the breed has 'a clownish energy' and 'may try to herd people or other objects.'