~snip~
Getting a small win will make them even more curious about getting the big win, even though they should be able to realize that the big win will be more difficult to get. They don't need to try to get a big win and maybe they can try it a few days later so they can lower their emotions first rather than immediately continuing to gamble.

Only good self-control can prevent gamblers from always returning to gambling and not being tempted by the offers they see at the casino. They can restrain themselves from trying to win another big win because they know that they have had enough gambling and do not need to try too hard at gambling.