About 10 years ago a good friend and I sat awake for hours into the early morning fascinated with the sport we were watching on TV. We couldn't understand the game or the rules at all, but we kept watching making up the rules as near as we could determine. The sport was rugby, best described as a combination of soccer and American football. I recently came across this post on the Art of Manliness blog. I wish I had read A Primer on Rugby ten years ago; if anything, I would have gotten a lot more sleep that night!