That's the old AA maxim, "Always have a drink in your hand and you'll never want a drink." That's one of the most classic deceptions in the literature: "I'll take a drink tomorrow." I actually don't think that's necessarily a very helpful maxim in AA, but it's a very good maxim in showing how strategic self-deception can be employed, even self-consciously. That's the amazing thing, to me, about self-deception.