I think that to say ALL alcoholics have no off switch is quite misleading actually, are you sure that's what she meant, because she could inadvertently be feeding peoples denial with statements like that.
There are an awful lot of highly functioning alcoholics out there. Look at David Yelland (is that his name?) you know, bald bloke that edited the sun newspaper. He was in the full throes of his alcoholism all the time he was doing that job, and his colleagues never even knew.
I really hope all this isn't coming across as if I know exactly where you're at with booze, because of course I don't, just wondering if any of it is helpful or rings a bell, because if it does, you have my deepest sympathy/empathy.
Although some alcohol counsellors do make the distinction between alcoholism the disease i.e. meaning physical dependency, and alcohol abuse, i.e. problem drinking without physical dependency, I personally feel it's murky water with too much overlap. I mean, if your drinking has negative consequences for you but you carry on doing it, surely that would imply a degree of dependency?
My very long winded point is that you don't have to drink every day, or even every week, or even vast quantities of alcohol to have a drink problem. Focus on consequences. And then decide for yourself.