"On April First it's OK to be suspicious about believing anything, too good to be true!" According to a psychologist who has researched past April Fools' Pranks.

“Most of us have fun playing harmless April Fools' tricks on each other but some folks inflict cruel and unusual punishment on their friends when their prank gets out of control." says Robert R. Butterworth, Ph.D., who has developed a list of questions that should be asked before planning an April Fools' prank:

Could the prank cause undue anxiety when uncovered? . Could it be misinterpreted by others as a serious event? . Does it involve deceiving more than a few people? . Is an element of fear or risk involved? . If you were on the receiving end of the prank, would you be upset?