Why do people spoil the story?

Tweet

Have you ever faced this situation that You've been waiting for ages to read this book... but one person beats you to it.. and to brag about having read it first or for some other wierd reason... tell you the story.. ruining the surprise, suspense, delight and fun for you? Why do pwople do such things? One of my friends did that to me twice... with the harry potter books... I stopped talking to him quite a while after that. Did anything like this ever happen to you? please feel free to share your views and experiences on such spoilers.