Just because workers have stopped taking time off of work doesn't mean that their bosses can't have a bit of fun.

Of American executives surveyed in a new survey conducted by Robert Half Management Resources, 51 percent said they do not check in with the office while on vacation. That's up from 26 percent in 2010 and 21 percent in 2005. (h/t Chicago Tribune) This comes just after a separate and now seemingly more awkward survey found that 37 percent of managers expected their employees to check in with work while on vacation.

Of course, American workers are doing what they can to make sure this isn't an issue at all. Roughly three-fifths of American workers left some vacation days unused last year, a Harris Interactive survey found. According to this report, workers failed to use roughly 70 percent of their allotted time. Another survey showed that the fear of returning to heavy workloads prevented workers from taking more time off, USA Today reports.

"I don't really have a back-up for my job," Kyra Mancine, a catalog copywriter told CNN. "I worry that if I'm gone for an extended vacation, the work won't get done and I'll come back to a huge pile-up of projects. I hate coming back to hundreds of emails."

Thankfully, 81 percent of managers either have taken or plan to take a vacation this year, according CareerBuilder.com. That's significantly higher than the 65 percent of full-time employees that plan to take time off.