This might be an impossible thing to accomplish, it's easier said than done. Personally a good reason for me to quit gambling is due to the negative effects it has. It doesn't matter if you win as long as you are constantly involved in it you will definitely lose everything you have won including the funds in your bank account.
Again, unless you have a whole lot of money in yo account to keep you going, that alone should be enough reason to quit gambling. We all know the implications of these things and that shouldn't even be a question to ask anyone -- that should be some personal decision type of shit.
Haven't I heard stories and cases that would have been avoided - or atleast treated with more leniency but no? Imagine lending out your funds to a very close friend cause he requested for it in pretext for his business, but then you realized that he gambled away the funds? It's understandable if he was too hungry so he had to help himself, but gambling?? You might wanna sue him!