Is It OK to Flirt at Work?

A giggle here, an eyelash bat there -- a playful punch or a graze of the arm, the increasingly-frequent cubicle visit: Soon it's lunches for two, maybe even drinks after work. But, much like paparazzi-plagued celebrities, you have to keep insisting that you're "just friends" to everyone around you, including yourselves. Still, you wonder, "What's the big deal, anyway? A little flirtation never hurt anyone."

Sure, flirtation can be fun and harmless, but when it happens in the workplace, where do the boundaries exist?