Sepak Takraw! I wrote about this when I discovered it in Thailand, back in 1986?, way before Facebook, and even the internet. Four off duty police officers taught me the game in a public park in Bankok. I was much younger then, about 35, and a second degree black belt in Uechi Ryu Karate, so I could do parts of it at least badly. I came home and predicted that this game would go big, like to the Olympics. It is now officially recognized as a sport in the Asian Games.