It’s that time of year again. Holiday cheer is in full effect and your company is throwing the annual holiday celebration complete with food, fellowship and an open bar. It’s rewarding to celebrate a long year of putting in work with your co-workers, but beware. When liquor is flowing freely in a festive atmosphere, it’s very easy to let professionalism slip away. A 2010 poll by human resource firm Adecco reveals that 40% of Americans have seen or suffered a major indiscretion at a work-sponsored holiday event. That’s a shocking percentage of messy behavior. Nearly a quarter of folks surveyed admit to drinking too much and a full 14% of holiday partiers have behaved so badly they lost their jobs. In this economy, that’s not a game. Here are some tips to avoid common holiday party faux-pas.