Dogs are friends of human beings. They are brave, loyal and considerate, and have won the love and respect of human beings. There is such a country in the world that regards dogs as the second only life of human beings. Almost every president has a dog and a dog. Even the 30th president, Coolidge, once said: "People who don't like dogs are not qualified to live in the White House. Let's take a look at the story of the president and the dog.