In my years of flying across the world I have never experienced such bad behaviour from fellow passengers. There was a row of guys in front of us who ordered coke and mixed it with alcohol. This was at 6am in the morning!! They were loud, boisterous and were asked by the guy in front of them to shut up. They then proceeded to throw paper napkins at other passengers. Where were the staff then? The crew should have asked them to tone it down!!