Re: Please Sir?
I suspect the fighting chance you refer is why blackjack tables (like poker) is heavily patrolled by waitresses with alcoholic beverages, to dull the players' faculties as quickly as possible. Note the relative scarcity of such services in the roulette and dice game areas, and near absence around the slot machines - where there's little to no action the player can take to improve his or her chances of a win, therefore there's less benefit to getting them buzzed.