"Household"? You meant the house right?
yes the op means the house and not a household . the household term is mainly being use on the real house and not on the gambling scene .
In a sense a casino is a metaphor for life. We only pretend, lie to ourselves that we can "beat it," that we can control it when in fact, it's all half chances.
we can beat the casino if you have lots of capital that is much bigger on the house capital . some small time gamblers think that they beat the casino after they win but we cant control them because we dont own them . the casino owner are the only one that can controll the casino .
You could beat the casino only when you are too much lucky, otherwise a lot of capital, give you opportunity to play gambling a lot, and it is not a way to beat the household. And if you think that then you should give us example of the man who play a lot and beat the household.