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Eyes ablaze with focus, the black-and-white dog heeds the start cue from her handler. She makes a jump, sprints up an A-frame, darts into a tunnel, shimmies through the weaves like a slalom skier, ...

Watchers of the world-renowned Crufts dog show could be forgiven they could never have the same control of their pet pooch as the expert handlers in the ring have. However, one impressiove-looking ...