I've never been to the middle-east but we're flying Qatar Air from Australia to Denmark this July. It stops off in Doha for 2 hours going there and 7.5 hours going back. We're just going to be in the international airport but is there still anything we should be careful of? 3 of them are in a heavy metal band but 2 others including me so I told them maybe don't wear band shirts. Are they western friendly there or still just as strict in the airport as the actual city?