The cat that trains guide dogs how to resist temptation

For most dogs, it would be temptation beyond endurance.

But for Yoko the labrador, being teased by a cat is all in a day's work.

Sixteen-month-old Yoko is a pupil at the Guide Dogs charity's training school, where Leo the tabby is a key member of staff.

Eye to eye: He challenges Yoko to react

It's a rollover: Leo lies down on the job

Congratulations, you passed: Despite all Leo's efforts, Yoko failed to react
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