Nearly 40 percent of workers have flirted with workplace romance, according to a new study.

And while 41 percent think dating a coworker might hurt their chances for promotion or put them in danger of being fired, 39 percent say they would still take part, the survey by Spherion Corp. says.

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Among the findings:

When asked if their workplace had a policy against dating coworkers, 53 percent said now, and just 16 percent said yes. 31 percent said they were unsure.

"Given that most of us spend at least a third of our day at work, there's plenty of opportunity to consider a workplace romance" John Heins, senior vice president and chief human resources officer at Spherion said. "Certainly, it's a company's decision whether to allow or discourage coworker dating, but the fact that nearly one-third of workers aren't sure whether their employers have such a policy is somewhat concerning."