worst I ever saw was a mid-day flight from Schipol to Reykjavik
The SLF, almost all Icelanders, had arrived early and were getting totally slaughtered in a bar airside (men & women - anyone over about 15)- it was so bad that the security staff had corralled them in using bench seats so they had exclusive use of one bar. I questioned the security guy and he said "it was always like this - they get on the plane and pass out and as long as the booze flows at the bar they don't get rowdy...."
