Field note · Read your dog
The waterline
Every dog has a baseline. Some live at high tide. Some live at low tide. Learn to see the waterline, and the rest of the training reads itself.
Most owners who come to me describe their dog the same way. "He's fine, and then suddenly he's not." Fine, fine, fine, and then a lunge, a bark, a scramble for the door. The owner couldn't have known. There was no warning.
There was warning. The owner just couldn't see it yet.
Every dog has a baseline level of arousal. Think of it as a waterline. When the dog is in a quiet room, well rested, no one new around, the waterline sits low. As the day stacks up, the level rises. A walk. A delivery driver. A bouncy puppy across the road. By the time the trigger lands, the waterline isn't where it started. The dog isn't reacting from baseline. It's reacting from already-elevated.
Some dogs live their whole lives at high tide. A doorbell pushes them over because they were already three centimetres from the edge. Some dogs live at low tide, and you can drop a tray of cutlery next to them without changing their breathing.
Training is not about preventing the waves. The world is full of waves. Training is about three separate skills:
- Bringing the waterline down. A dog with a settled routine, enough rest, and a household that doesn't rev them up every twenty minutes runs at a lower baseline. This is what most owners don't realise they need to work on first.
- Teaching faster de-escalation. When a wave does hit, can the dog come back down inside a minute, or does it take forty?
- Reading where the waterline is sitting right now. A dog at 30% has different capacity than the same dog at 80%. Most owners ask their dog to do the same thing regardless. That's the bit that has to change in the handler.
How you read the waterline is body language. The slightly higher tail set. The ears that have been forward for too long. The paw that lifts when nothing happened. The micro-second the dog looks back at a trigger after pretending not to. The harder you look, the more there is.
A dog that lunged "out of nowhere" almost always gave four or five signals first. The owner just hadn't been taught what to look at.