Yes! There is free money in the world. On the Chinese new year day, I went to dim sum at the new Kirin restaurant in New Westminster, which is right next to a new casino. Kirin give each customer a $10 coupon for the casino. At first I though the coupons just exchange for chips, so I have to gamble away the chips. It turn out that I can change the chips back to cash right away! I got $10 for free! My lunch cost $14.5, minus the $10 cash back, the real cost is only $4.5. What a good deal!
We have a big group of engineers went to lunch that day. We are good at maths, we know the odds are against the gamblers. So none of us would spend a dime gambling in a casino. However, we all walked out from a casino with a small profit. Of course there many stupid people in this world. They will take the $10 coupon to gamble, at first they will lose the $10, then they will start losing their own money. The casino is quite smart giving out free money, as baits to fish stupid gamblers. I guess if everyone thinks like engineers, the casino would go bankrupt pretty soon.