Don't Be Slip Sliding Away

From the Big Book - and yes, it does actually say "Rule". Wow.

So our rule is not to avoid a place where there is drinking, if we have a legitimate reason for being there. That includes bars, nightclubs, dances, receptions, weddings, even plain ordinary whoopee parties [I'm not sure if I ever went to a whoopee party?]. To a person who has had experience with an alcoholic, this may seem like tempting Providence, but it isn't.

You will note that we made an important qualification.  Therefore, ask yourself on each occasion, "Have I any good social, business, or personal reason for going to this place?  Or am I expecting to steal a little vicarious pleasure from the atmosphere of such places?" If you answer these questions satisfactorily, you need no apprehension.  Go or stay away, whichever seems best.  But be sure you are on solid spiritual ground before you start and that your motive in going is thoroughly good.  Do not think of what you will get out of the occasion.  Think of what you can bring to it.  But if you are shaky, you had better work with another alcoholic instead. 

Oh and there is a little bit more, read it for yourself on page 100-102.