Quick Answer: Interrupt the moment your dog looks at the cat with the chase body language — freeze, forward lean, tail up, hard stare. Call their name and reward any attention toward you instead. Build a solid 'leave it' command that interrupts the pre-chase state. Never let a successful chase happen — a dog who catches the cat and gets a reaction has been rewarded enormously.
The Stages to Interrupt
Chase behavior builds through stages: notice → stalk → chase → catch. The earlier you interrupt, the easier it is. Interrupting at 'notice' takes one recall. Interrupting at 'stalk' takes more effort. Stopping a chase in progress is very difficult. The goal is to never reach the chase stage.
The Leave It Command
- Hold a treat in a closed fist
- Let the dog sniff and paw at your fist
- Wait for the moment they back away or look up at you
- The instant they disengage — 'yes' and give a DIFFERENT treat from your other hand
- The closed fist treat is never given — only the other hand treat. This teaches 'leave it means the thing I was interested in is gone, but something better comes'
Management While Training
Keep the dog on a leash around the cat until recall and leave-it are reliable. Never leave unsupervised together until full trust is established.
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