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A crash course in reactivity

May 13, 2026

A crash course in reactivity

Nobody brings home a puppy expecting to end up with an anxious or reactive dog. We picture relaxed walks, easy outings and a dog that can calmly take everyday life in its stride. But the reality is that some puppies do grow into dogs that find the world difficult — and sometimes the foundations were there long before the first obvious signs appeared.

The good news is that there is plenty you can do to stack the odds in your favour, starting with the puppy you choose.

Start before you bring your puppy home

Choosing a puppy should involve more than falling in love with a photograph online. Some dogs are naturally more resilient and easygoing; others are simply more sensitive, watchful or quick to react. Even puppies from the same litter, raised and trained in similar ways, can mature into remarkably different dogs.

When you meet a litter, don’t automatically choose the quiet little puppy sitting at the back because you feel sorry for it. Watch for a while. A puppy that consistently hangs back, seems fearful or is reluctant to come forward and investigate may be showing early signs of timidity. For most family homes, look for a puppy that is friendly, curious and confident enough to come and investigate you — without necessarily being the most over-the-top puppy in the litter.

Research the breeder and bloodlines carefully. Meet the parents where possible and watch how they behave. Are they relaxed around people? Can they settle? Have they experienced normal life beyond their own property? Talk to owners of dogs from previous litters or related lines too.

And remember that impressive titles don’t necessarily tell you what a dog is like to live with. A brilliant working or sport dog isn’t automatically an easy family pet.

Breed matters too. Some breeds have been developed to be highly alert, protective, sensitive to movement or suspicious of strangers. That doesn’t make them bad dogs, but it can make them more challenging for inexperienced owners. Think carefully about whether the breed — and the particular bloodline — suits your lifestyle and experience.

Socialisation is about calm confidence

Once your puppy comes home, good socialisation is enormously important. But that doesn’t mean taking a young puppy to a dog park or dropping it into the middle of a room full of unruly puppies and hoping for the best.

Good socialisation means careful, controlled exposure to the world. Let your puppy watch people, dogs, bicycles, traffic and everyday activity from a distance where it feels safe. Sit together on a blanket, carry a young puppy through appropriate public places or let it watch the world from the back of the car.

The aim isn’t to create a puppy that wants to rush up to every person and dog it sees. It’s to develop calm confidence and teach your puppy that the world is a safe, fairly ordinary place.

If things start to go wrong, don’t panic

Puppies and adolescent dogs can go through fear periods, and sometimes a previously confident youngster suddenly becomes worried about things that never bothered it before.

But if anxiety or reactive behaviour is increasing rather than passing, seek professional help early. Don’t simply hope your dog will grow out of escalating barking, lunging, fixation, fear or an inability to disengage from triggers.

Early intervention, sensible management, training and an appropriate counter-conditioning plan can make an enormous difference. It may not turn a naturally anxious dog into a social butterfly — and that doesn’t need to be the goal. The goal is a dog that can cope with everyday life and be happy in the world it lives in.

CLEAR owner and head trainer Caroline’s dog Hope is a good example. As a youngster, Hope was naturally anxious around other dogs and particularly disliked unfamiliar dogs approaching her or getting in her face.

With extensive training and counter-conditioning, Hope has learned to cope confidently around other dogs while still having her own boundaries. She competes successfully at the highest level of dog sports and has won national championships.

Her progress hasn’t always been a straight line. Hope has twice been attacked or seriously harassed by other dogs at competitions or competition training, and both incidents set her back. Each time, Caroline simply went back to a careful management, training and counter-conditioning plan and gradually rebuilt Hope’s confidence.

Setbacks happen, particularly with sensitive dogs. The important thing is not to panic. Acknowledge what has happened, work out what your dog needs and get on with the job of helping them through it. Becoming anxious about every encounter can make things harder, because your dog can pick up on that tension too.

Hope will never be a social butterfly, and she doesn’t need to be. She leads a normal, happy life, competes successfully at the highest level of dog sports and, most importantly, is an absolute joy to live with.

Choose your puppy carefully. Socialise for calm confidence rather than excitement. And if things do start to go wrong, get appropriate help early and have a plan.

You can’t control everything that happens in your dog’s life. But choosing carefully, socialising sensibly and getting help early can stack the odds firmly in your favour.

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