You can lost everything if you gamble with a lot of money on risky gambles. The best way to gamble on sports is to put a lot of tickets with not much money.
i do not think that gambling is risky if you are expert in gambling then you will never lost your money there is many people join gambling without experience they lost their all money.
Expert? are you seen actually that there are expert in gambling i am sure they know that gambling is not a right place to make a good profit because if you greedy you will end up losing.
Expert they can only advice someone but actually they can not win a lot in a single blow.