By Lynne Curry Question: After an investigation, we fired one of our employees for threatening and stalking two co-workers. He now demands a positive letter of reference, which I'm writing. I tried to appease him with an innocuous letter that gave the dates on which he'd worked here along with what his job duties were. He refused to accept this, and frankly he scares … [Read more...] about Don’t write a positive reference for a problem employee; instead…