Reentering the office after Christmas can be particularly overwhelming. You'll find everybody huddles together, each recounting their own dramatic holiday saga, which usually involves a few or more ‘loved ones’. Granted, family dinners are like taking part in a reality show, minus the cameras. My personal motto that has served me well throughout the years: When in doubt, say nothing. Also, lie — a lot. Or rather, omit as many details of your life as you possibly can. Moreover, if somebody says…