Law School Discussion

I have a very similar concern. I don't want to high jack the discussion, but I feel my question is related. I have come to a stand still when it comes to explaining my arrest for public intoxication. I know that I need to describe when and where and the circumstances surrounding my arrest, but I don't want to seem dismissive or defensive. Any input or insight on how to effectively convey what happened while still showing growth and maturity since?