Bipolar brings up a good point. There are alcoholics who do find a way to beat the bottle but still can find a way to have a drink now and then. Most are not successful with this. I feel really bad for people with addiction to food because obviously you can't quit cold turkey and vow to never touch another bite like alcoholics do. There are some priests and ministers who have a hard time with alcoholism because their jobs generally require them to partake regularly - even if it is small amounts.
That's one reason why many protestant denominations have switched to grape juice instead of wine for communion.
I used Chantix in 2005. I have not had a cigarette since then (after smoking for 25 years). There are times when I still desperately miss having a smoke. I don't dare smoke one, because I know that if I have one, I won't stop there. Some people can smoke one or two at a bar, then not smoke again for months. That's not me.
Basically, secondname, you need to know what kind of limits you have...and until you are firmly in control, "just one drink" can (and will) hurt you. FWIW, I will never have that kind of control over my addiction.