Last Teacher's Day was the best of all teacher's day I've ever known. This year, our school have presented "My Teacher My Hero". Before the event ended, they've made a flashmob of Gangnam Style (which you can see on YouTube → http://youtu.be/rZeZrHlHDF4 ). We bought a cake for our teacher, Mr. Hartono Lim. While physics lesson, we didn't study #yay. Some people were playing, eating, take photos, etc.