EVANSVILLE, Ind. — You might think you have a perfect April Fools' Day joke all lined up. And maybe you do. Most of the time, there's nothing wrong with a lighthearted prank, even if it comes at the expense of a close friend or family member. But April Fools' Day can also backfire big time, a recent survey of 1,000 Americans from marketing company Top Data says. According to the survey's findings, about 2% of April Fools pranks end in relationship disaster, with the victim severing all ties to the jokester. While two out of a hundred people, may not sound like much at first glance, that is simply the most extreme reaction; a much bigger number — about 24% — of respondents said they had a negative reaction to a prank, ranging from "get mad but get over it" to the aforementioned and drastic "terminate friendship."