A Sealyham puppy is one of the prettiest of any breed. This may be an advantage from the sales angle but unless it is realised what a strong and independent character it has, its attractiveness can be a disadvantage, so owners may think of them only as cuddly pets. It is an extremely intelligent breed and so sensible training is essential from a very early age. In fact, training cannot start too young. A puppy will try to get its own way but soon learns that this will not be tolerated and it respects the delightful companion. All puppies have their own different traits, which are part of their charm, yet all have many characteristics in common.
The Sealyham responds to affection for it is a most devoted dog and once it has come to love a person it never forgets them. It is full and has a great sense of humour and is a great show off. It loves to please and most training can be instilled by the tone of the voice. It is seldom necessary to smack a dog. I am sure that dogs that are handled firmly but kindly are happier than those that have no training. It is not the dogs fault if it is disobedient and a nuisance to everyone. The owner is to blame for failing to teach it.
Because of their game character it can be aggressive with other dogs, but again training can do much to stop this tendency. A sharp word at the first sigh of aggression will stop any trouble. Puppies should be allowed to grow together and mix with older dogs. With a firm but understanding owner there is no reason why nearly all dogs cannot be allowed together. The exception to this is sometimes found with older males that are used a good dal at stud. Here the instinct to lead the pack may prevail. In cases such as this it is obviously unwise to allow stud dogs to meet except under control. Dogs that can live freely together must be happier and fitter than those that are kept in solitary confinement.
From the practical point of view the Sealyham is a handy size, though no toy dog. It has a non-shed coat, so that hairs are not found left around the house. It is very tough and sturdy and is adaptable, being equally at home in a town or the country. It is a courageous guard with a deep bark which acts as an excellent deterrent to any sensible management usually live to a good age. It makes a most delightful companion. Once anyone has owned a Sealyham they become its devoted admirer and seldom changes to another breed.
Nancy H Binley (1983)