Dec 12, 2012 (Morning Edition) — A Londoner opted for a new way to thwart neighborhood cats from stealing her pet's food. She hung a magnet to Milo's collar that unlocked a fancy cat-door. It turns out Milo had been slipping into neighbors' homes. And the magnet started picking up their spare keys, eventually scattering more than 20 sets of keys around her owner's home.
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