Twitter is the devil. With its explosion, it's going to be particularly bad teaching this fall. I'm going to have to lay down the law about no tweeting in class. I already had to implement a no text messaging rule. A longstanding rule is that if your cell phone goes off then I get to answer it, and I talk dirty to whoever is on the other line. That happened once to this very religious rural girl whose cellphone went off, I started yelling "me so horny" into it, and it turned out to be her grandfather. He failed to see the humor in the situation.