Richard Branson, founder of Virgin Group, played an April Fools' joke on his Twitter followers. The billionaire tweeted out a message announcing the "world’s first glass-bottomed plane" was introduced by Virgin Airlines. The tweet linked the his blog on Virgin's official website. The entire company was in on the prank, with an official press release and other employees questioning if they might discover Nessie while flying over Scotland. Would you ever consider flying in a plane with a glass bottom?