Setbacks: information, not failure
Every dog-and-cat introduction has bad days. A lunge, a hiss-and-swat, a session where nobody could settle — these are information about your training picture, not verdicts on your animals. Record them honestly; the setback count on your dashboard exists so you can see patterns, not so you can feel guilty.
What a setback is telling you
A setback almost always means one of these changed:
- Distance shrank faster than the dog's emotions were ready for.
- Movement appeared that the dog hadn't rehearsed calmly (a sudden cat sprint).
- Context changed — new room, visitors, an under-exercised dog, a cat who had a stressful day.
- Arousal stacked up — too many sessions, too long, too close together.
Identify which one, and the fix usually names itself.
The go-back-two-days rule
After recording a setback, restart at the plan from two days earlier — bigger distance, easier criteria — and work forward again. Progress in behavior work is not linear; re-earning ground is fast the second time. If the same phase produces setbacks twice in a row, stay there and split the step: increase distance by an extra meter, shorten sessions, or add a barrier back.
Never punish
However dramatic the lunge, do not scold, jerk the leash or "correct" the dog. Punishment cannot teach a dog to feel calm — it can only teach the dog that cats predict bad things happening to me, which is the exact opposite of your goal and reliably makes aggression worse. It also teaches the dog to suppress the warning signals you depend on.
Managing an over-threshold event
When things do boil over:
- Calmly increase distance — walk the dog away on the leash, cheerfully if you can manage it.
- Let the cat leave; never block its escape route.
- End the session. Both animals need recovery time — stress hormones take hours, sometimes a day or two, to fully settle.
- Give a full day of management (complete separation, extra enrichment) before the next session, and restart two days back.
One well-managed setback, followed by a patient reset, leaves no lasting damage. A setback that is punished or immediately repeated does.