I'm not comfortable about this , Sandy . I don't understand most of these games .   That's okay . I can explain a little .   I don't want to lose all my money .   Don't worry . You can't lose all your money.because you won't gamble all your money .   I guess you're right .   Of course I'm right . I already told you the rule for Las Vegas . Remember ?   Yes , I remember.You must decide how much money you will gamble before you start to play .   That's right . That's the best way to have control over yourself.You say to yourself . Tonight I will gamble fifty dollars . Only fifty dollars . No more.If you follow the rule , you can't lose more than fifty dollars .   I know it's true , Sandy . But still some people lose control.They start to gamble , and they can't stop .   But I won't let you do that . I will watch you .   Okay .   So how much do you want to gamble ?   Maybe 500 dollars . 