I know. Livvie, for all I know, doesn't even gamble at those. I just guesed. I hope for her sake she doesn't. Lots of money gets lost in those places, if you use real money, that is.
I studied Math in school and that include probabilities. Casinos and lotteries employ that kind of people, to make sure the customers loose a bit more than they win. It pays their wages, I suppose.
I like to gamble but not to the point of a problem. It's an occasional thing and my trick is to consider a set amount of funds that I can afford to part with and consider them a loss before I make my first wager or bet.