Puppy Behaviour Routines: No "He Has to Get Used to It" — Why Flooding Your Puppy Backfires

"No 'he has to get used to it.'" This is one of the most important corrections the book makes to common puppy-raising advice, and it targets a deeply entrenched myth. The myth goes like this: if your puppy is afraid of something, you should expose him to it repeatedly and forcefully until he stops reacting. He will get used to it. He has to. It is for his own good. This approach is called flooding, and it is one of the most damaging things you can do to a young puppy's developing confidence and emotional stability.

Flooding works on the principle that if you expose an animal to a fear stimulus at high intensity for long enough, the animal will eventually stop reacting because the stimulus is no longer novel. In some cases, this is what happens. The animal appears to give up. He stops struggling, stops vocalising, stops showing overt signs of fear. The untrained observer interprets this as success: the dog got used to it. What actually happened is that the animal's nervous system was overwhelmed to the point of shut-down. He did not learn that the stimulus was safe. He learned that resistance is futile. He learned helplessness, which is the opposite of confidence.

In other cases, flooding produces the opposite of the intended effect. Instead of the puppy getting used to the stimulus, his fear response intensifies. Each exposure reinforces the association between the stimulus and the intense fear he experienced during the exposure. The puppy becomes more reactive, not less. A puppy who was mildly nervous around strangers after being repeatedly forced into interactions with them may develop full-blown fear aggression. A puppy who was unsure about loud noises after being subjected to repeated, intense noise exposure may develop noise phobia. These are not rare outcomes. They are common and predictable consequences of flooding.

The book's alternative to flooding is systematic desensitisation. This approach introduces the fear stimulus at a very low intensity, well below the threshold that triggers the fear response. The puppy is exposed to the stimulus while engaging in a positive activity, like eating treats or playing with a toy. Over many repetitions, the intensity is gradually increased, always staying below the fear threshold. The puppy learns at each step that the stimulus predicts something positive, not something dangerous. The fear response is gradually replaced by a positive or neutral association. This process takes longer than flooding, but the results are permanent and genuinely confidence-building.

Consider a practical example. Your puppy is nervous around the vacuum cleaner. The flooding approach would be to turn the vacuum on near the puppy and keep it running until he stops reacting. The systematic desensitisation approach would be to place the vacuum cleaner in the middle of the room, turned off, and scatter treats around it. The puppy learns that the presence of the vacuum predicts food. Over several sessions, you turn the vacuum on briefly at a distance while feeding high-value treats. You gradually reduce the distance over many sessions, always keeping the puppy below his fear threshold. Eventually, the puppy can be in the same room as the running vacuum without distress. He has not just stopped reacting. He has genuinely learned that the vacuum is safe.

The "he has to get used to it" mentality is particularly dangerous during the critical socialisation period. This period, which ends at approximately twelve to sixteen weeks, is when the puppy is most receptive to new experiences but also most vulnerable to negative ones. A bad experience during this period can create a lasting fear response that is extremely difficult to change later in life. Every exposure during this window should be designed to be positive and manageable. If an exposure is causing the puppy to show fear signals — trembling, hiding, lip licking, yawning, trying to escape — the exposure is too intense and should be reduced, not intensified.

The book's message is clear: do not force your puppy to "get used to" anything. Respect his fear signals. Reduce the intensity. Introduce the stimulus gradually. Pair it with positive experiences. Build his confidence one step at a time. This approach takes patience, but it produces a puppy who is genuinely confident, not just apparently compliant. And a genuinely confident puppy grows into a stable, well-adjusted adult dog who can handle the real world without fear.

Understanding canine body language is one of the most valuable skills a dog owner can develop. Dogs communicate primarily through their bodies, not through vocalisation. A wagging tail does not always mean a happy dog. The position of the tail, the tension in the body, the position of the ears, the shape of the eyes, and the overall posture all convey information about the dog's emotional state and his likely next behaviour. A dog who is stiff, still, and staring is not relaxed — he is likely in a state of high arousal that could lead to a reactive response. A dog who turns his head away, licks his lips, or yawns in a non-sleepy context is signalling discomfort or anxiety. Learning to read these signals allows the owner to intervene before a behaviour escalates, which is far more effective than reacting after the behaviour has already occurred.