I have nothing much to shear because those two things you have listed, I have not take them serious. Right from time I am never a greedy nor an over confident gambler. I always play gamble but gamble with my sense because I know how gambling has destroyed alot of people's destiny due to the inability to understand the way about of gambling.  No doubt greediness has a great effect on people's life because it Leeds to mental or emotional diverstation due to frequent betting without win to an extent people sell their property to take the risk yet nothing to show fort. Instead of winning they end up losing all they have.