Americans are overworked and sheepish about taking the allotted vacation days to which they are entitled. But there's a solution. A recent Robert Half poll shows 39% of workers do not use all the paid vacation time they receive -- with 38% attributing this move to saving days up and 30% noting they are fearful of falling behind on work. Of course, the layoff paranoia of the Great Recession has Americans scared they will return from vacation to find their desks cleared out, their belonging in boxes. The answer is simple: the stealth vacation, taking unofficial time off through surreptitious tactics. Working remotely while really in a relaxing locale or baking in an extra day or two of travel while on a business trip can allow employees to get the reprieve they need. We took to Wall Street to find out how employees are artfully getting their vacation days.