First off, young ones cover your eyes. One of our vocab words this semester has been 'pen pal.' Pen, when pronounced with the wrong tones (something I'll do occasionally) is a slang word for lady-parts. "Today class, we'll be writing an introduction for our *&*($ pal! So, take out your notebooks...." It's awkward.
Also, I'm giving a speech (in English) in front of the entire school today. I'm going to go write it now. I figure as long as I don't repeat the same word for five minutes, I should be decently alright.