Betting on sport events is somehow similar to stock trading: Complete amateurs can lose a lot of money, but for the expert, it's a serious source of income. Because picking the right stocks can be tricky, a lot of people choose to buy fund shares and have an expert take care of their money. The obvious advantage is that someone can work on the stocks full-time, and due to the large amounts of money involved, any transaction generating even a small percentage is worthwhile. I am...