A dog is most memorable experience for me. It is a faithful animal and is devoted to his master. Such a rare quality is found in dogs only. My dog name is “Lion”. Lion is lovely, intelligent, and naughtily. It is said that ‘a friend in need is a friend indeed’. My pet dog fulfill all the characteristics of a good friend. In today’s world, it is really a tough task to find a true friend. Human beings have become fond of material possessions. They have become selfish. But, my pet dog is not selfish. He is always ready to selflessly act according to my instructions. So a dog is a man's best and true friend. It is very useful to me. It readily dies for the sake of its master.