In the company lunchroom, you overhear a group of employees talking about the new hire in accounting. “I heard he’s been dating Susan in accounts payable for a couple of months,” says one of them. “They met a while back … No wonder he got the job here!”

“Yeah,” another employee chirps. “I saw them out at a restaurant last week. Hot and heavy!”

“Seems like a bad idea to me,” says a third. “She’s not his boss, but she is a supervisor in his department. Wonder what management would think if they knew about it.”

Wonder, indeed! As the company’s ethics and ...