If you're in China on April Fools' Day, you needn't worry about being pranked—the tradition has been outlawed. In a message posted online, the country's official Xinhua news agency said: "Today is the so-called ‘Fools' Day' in the West. Fools' Day doesn't consist with our country's traditional culture, the core socialist values. (We) hope nobody believes in rumors, creates rumors or spreads rumors.” Chinese social media users have ridiculed the post. Some said it was the best joke of the day while others were confused about whether it was meant to be funny or serious. China has long been concerned about the influence of social media on its population. Three years ago, the ruling Communist Party launched a campaign to criminalize the spreading of rumors.