When I was teaching teenagers, I frequently discussed online safety.  Cyberbullying, phishing scams and the typical 419 Nigerian prince scam were among our class topics and we would laugh hard at the absurd grammar errors in the spam email letters. However, I have recently learned that the gross grammar errors and the far-fetched stories featured in the 419 letters are actually meant to attract the most vulnerable and gullible and to repel those who are less likely to fall for a scam. So, it seems that scammers are...