Service dogs are trained to know when they are on duty. When their harness is on, they know they are at work. When you take it off they instantly become playful and energetic.
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Dogs can make about 100 different facial expressions.
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A man is more likely to get a woman's phone number if he is accompanied by a dog.
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Dogs have four toes on their hind feet, and five on their front feet.
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In the movie 'The Wizard Of Oz', Toto the dog's salary was $125 a week, while Judy Garland’s was $500 a week.
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