almost everyone who gambles will leave gambling when they run out of money but there are some people who are willing to borrow money from others just to go back to playing because the gambling addiction is so deeply attached to them that it is difficult to leave it
Only if they don't have money left to gamble. They can back any time as they wish after getting the fund through their bank account and the worst as you've said is going back after loaning. This is the reality and its sad to see that there are addicted gamblers who really do that. And having that said that's hard to remove for those gamblers that lost a lot of money.