Racedos on the right track.If you must have "duty free"have it presented at the destination on production of your receipt.Why oh why do people have to (a)get drunk before a flight?(b)feel the need for alcohol all the time unless they are alcoholics? When I was working away quite a few of us would meet at a certain terminal bar and have a couple of pints as our destinations were more than likely alcohol free countries but we were never rowdy or caused fights.Think its just a generation thing like tattoos and funny hair styles maybe eventually people like this will change!!