It was a cool winter's day in the middle of December ,and my friend and I were looking forward to our Christmas holidays. It all we could talk about when we were in school, my teacher was beginning to get a bit fed up of listening to us talk about it all the time, so she decided to play a trick on use. Teacher asked us to go to office to get some books for her. As we walked through the hall we could hear an echo, I looked in front and behind. Which way it was coming from we didn’t know. Then we all realised that it was our teacher playing a trick on us through the intercom in the classroom.