Most Border Collies are rehomed because the home could not keep up with the dog, not because the dog is bad. People are drawn to the smarts and the looks, then meet a tornado of energy that herds the kids and shreds the couch when bored. Most are given up before age two. With enough exercise and a job, the same dog is brilliant and devoted.
The mismatch is the common thread. A Border Collie was bred to work all day. Drop it into a home with no job and not enough exercise, and the energy turns into chewing, barking, digging, and anxiety. Most rehomed Border Collies are young dogs whose owners were not ready for that.
The herding instinct adds to it. Many Border Collies chase and nip at moving things, including children, bikes, and cars. It is instinct, not aggression, but families often do not expect it.
The human reasons are just as common. Among US households that gave up a pet for a pet-related reason, about a quarter said they could not afford medical care. A rehomed Border Collie is rarely a broken dog. It is usually a working dog that needed a job, and in the right active home it becomes a devoted, easy-to-train companion.
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