The Serenity Prayer

God grant me the serenity to accept the things I cannot change,
courage to change the things I can,
and the wisdom to know the difference.

The kicker is in the final line. Knowing the difference. When I mentioned the Serenity Prayer at the Skeptics in the Pub earlier this year, a guy in the audience shouted out that the prayer is used at meetings of Alcoholics Anonymous. I looked over to see who had called out and saw him stood at the bar next to three empty pint glasses. I doubt he's still a member.