I have been to many FP forums on the net lately (shame on me). On one of the french speaking ones, I saw that most of the people began their post with Ia Orana (hello Meherio, y a pas le feu au lagon?) and finished with Nana. Then one person began with Ia Orana Nana lol! I can imagine his/her embarassement when somebody else replied "nana is not a first name..."