Perhaps it's possible not to gamble at all or at least minimized it. I know someone who works on the casino, although not directly as a dealer or in the floor. But he is more on the back office. And he told me that they are not allowed to play inside as they are a employee.

Although it's possible that he can go outside and gamble online, but I do know that he is not really into gambling. So I guess he has a big self control and being a insider, he really knows what gambling can do to him and so he stays as much as possible.