i currently have a border terrier who is about 1 year old, he is truly an amazing dog and has a character unlike any dog i have ever met,
he is full of energy and fun, he loves cuddles but he NEEDS atleast a 1-1&1/2 hour walk a day otherwise he has zoomies round the house for ages.
They can develop nipping at a young age so you will have to be careful about getting them out of that habit, even from the best of lines, its just a trait of the breed.
They need to be stripped atleast 4 times a year, this can take up to 7hours at a time, or over a week for 1 hour a day with baths, but this only needs to be done every 3 months.
After they have been stripped, the shedding is almost non-existent.
Harley hates water apart from the sea, but this may be from an accident when he fell in our pool as a adult.
Harley excelled at obediance, but after he had learned the commands he knew them but he doesnt like obediance for more than a hour.
Its extremely important you dont motivate them with food as this will not help with nipping, toys and praise are the best motivation for this breed.
In about half a year when harleys bones are fully developed we plan on starting agility. We have been practising in the garden and it is a great way to channel his energy into a competative sport.
Harley is from working lines so that may be a reason for his energy and the fact that he will chase any animal he sees (rodent, cat), its safe to say he has a strong prey drive.
Harley is completely the opposite of dog aggressive though, he loves strangers and dogs, he is not shy at all.
He is very independant so training the 'come' command from very early on is a must.
If you go for show lines than its more than likely that the dog is gonna have a more relaxed temperament as the prey drive will have been lost with breeding for strict show lines, even though i would never buy a dog from a breeder that does just showing as i believe the dogs should be able to do what they were originally bred for.
Terriers, especially the borders were bred for hunting out rats and small vermin so its highly likely they will chase small animals, but even this behaviour can belost if you train him from very young
i cant remember what i've missed but if you have any other questions i will be happy to answer them if i know the answer.