A third of American adults will attempt to pull off a prank today in honor of April Fools’ Day, according to The Harris HRS +1.46% Poll. But who are they trying to prank?

Best friends, spouses and siblings are the most at risk, with 76, 72 and 72 percent of those surveyed calling them potential targets, respectively.

Meanwhile, bosses and teachers are the least likely to be subjected to pranks today as sixty-four percent consider them off limits.

Happy April Fools Day! Don't believe anything unusual today!