All fun aside, its up to you to control yourself. Dont expect others to do it for you. You're on the hook for your actions... and you have to live with the results.
Don't be the next headline story of your local newspaper or TV newscast... its nothing to be proud of.
Do learn to consume your favorite brands in moderation - and know when you've had too much to drive - the odds are that you'll be legally inhebriated long before you start thinking you've had too much.
And above all, be safe. Not just for yourself, but for those who know and care about you.