I would be very careful with this method because youre using an aversive (positive punishment) that can potentially hurt the fog. Using the vinegar and water and spraying it in the face can cause pain and damage to the dog's eyes.

Positive punishment only temporarily suppresses behavior, it doesn't change it long term and doesnt address the root cause. Meaning any time you aren't around to enforce the correction, the dog will take the opportunity to countersurf.

Susan Garrett has a game called It's Yer Choice (IYC) that is much better for teaching the kind of impulse control you're looking for.

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