Brazilian Rules Football

I was talking with one of the local consultants here yesterday, and he asked me how I liked Brazil. I told him I was having a good time, and I even played <s>soccer<s/> football with some guys last Saturday. He told me that a lot of times in Brazil, they make a rule that each time you get a yellow card penalty, you have to pay R$10, and for a red card they make you pay R$50. This way they can control the fouls people might be tempted to make. He said this system also works to "make things interesting" because a team will usually put R$100 into the pot for a Sunday tournament. They play against a bunch of teams, and the team at the end wins the pot. Maybe each player on the winning team can get about R$100 (about US$50) for playing football on a Sunday. The short game I played last Saturday was much more casual than this, but I could see how, in a more serious game, they would need some "incentive" to keep people from letting things get out of hand.