~ If we lose control, we become vulnerable and weak, and our money is what disappears. In other words, we'll be worse off Money is very necessary; we shouldn't leave it at the casino just because we have impulses
Just because of the impulses, yes, we shouldn't. But if we expect some loss before we start playing, if we expect to lose to casino, say, $5-$10, the money that we can afford to lose, than it's another story, right? I think, there's nothing wrong in "losing" some small amount on your entertainment. I deliberately put "losing" in quotation marks because to me it's not losing as such. I'm confident that money spent on your relaxation is not lost. I'd say, it's invested in the effectiveness of your work in the nearest future; and working more effectively you can make more money, right?