There is an expert out there writing a book on every imaginable subject. I was recently listening to an episode of Freakonomics about the benefits of saying bad words. They interviewed an academic who discussed the cultural trends associated with bad words. He said that there were three eras of bad words. The first phase included blasphemy, religious taboo, and broken oaths. The second phase was mostly poop jokes. The third and current phase involves disparaging different people groups. It was an interesting episode but they over-intellectualized the topic. When it comes to cuss words, I am an expert. Just yesterday, I was running up the steps, smashed my knee on the cupboard, shed some tears, and invented two brand new bad words. I should write a book on cuss-ology.