8. Gambling

Gambling has been the bane of our society since the beginning of time. As people have been gambling with more than just money, gambling with money seems to have become a part of human culture. Apart from an obvious horrid habit, gambling is considered an easy way of making big money. Unless you are not a victim of rigged dices and plain bad luck, you just might make a small fortune. But chances are that you will lose more money than earn it. So, choice is yours – crack the ‘Teen Patti’ mathematics code or get super concentration like Mahowny.