Personally, this is the way that I look at it:
I have to have SOME control. While I don't have a stash, I couldn't have a stash and not abuse it, but you know it's there. You can control whether or not to take it. And I'm a true believer in that if you get rid of it, you'll run out and buy more simply to have it.
I've been to eating disorder websites where some of the posters still have stashes of diet pills. They don't take them, just a control thing.