Managing a difficult co-workerQ:I have a co-worker in another office who often scolds me via e-mail and adds additional names to the “cc:” line. It is not as embarrassing as it is annoying. How do I approach her tactfully to put an end to this?A: E-mail is often used inappropriately. It is definitely not the best forum for delivering bad or uncomfortable news. The e-mails often escalate back and forth and then the issues ne...