Many years ago I operated a charter taking scottish rugby fans from Edinburgh to Cardiff and return. Two legs each way. They were "well away" on all sectors but they were the happiest, most well behaved, passengers I have had the pleasure to have on board. (Scotland won). Lots of singing but nothing too vile as they seemed to respect our female CS who, in fact, were happy to join in. I guess that was an exception that proves the rule because I have had a number of far less pleasant experiences.