I have been to casinos once or twice ,there i found that in order to keep people awake they put caffeine in their drinks.What do you think casino do this only to keep people awake or is this an urban legend like the oxygen?

What kind of drinks are you talking about? Just soft drinks, or are you saying that the casinos put caffeine in all the drinks?

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"You gonna bark all day, little doggie, or are you gonna bite?" - Mr. Blonde from Reservoir Dogs

I never heard about this before but i am sure they do not spike drink with caffeine." The italians used to have HUGE espresso shops inside their casinos when it was still legal, I read it in this in many casino sites "

cannot say exactly they may be.