Lots of brands see April Fools' Day as a golden opportunity. It's a chance to get people talking about you, even if the products or services are absolute hokum. "Hey, have you seen Kit-Kat are doing soap now?" could easily lead to: "Hey, I'm getting a Kit-Kat, do you want one?" It's also an occasion for big businesses to appear less like corporate monsters and more like real-life people with a sense of humour. And if it doesn't set the world on fire, it probably wouldn't have made much of a dent in your marketing budget, so all's not lost. We take a look at some of this year's best (and worst) April Fools' Day pranks in the latest edition of Sociable Folktales.