As Scotty1 mentioned above (may 27th) they can get very drunk. Apparently the officials had to stop selling tickets mid afternoon as there was a fracas in the bar area of the main showground resulting in several arrests. Despite this, they've estimated there were around 2500 in the crowd and sadly, in a different part of the field we were playing in, there was a serious sexual assault which at the present time is still being investigated.
I think the security presence is 'de-riguer' for music events these days, not just for the band's safety but to look after the crowd - at last week's Springsteen gig, we saw several incidents where the police and event security not only had to haul drunks out of the stadium but also one or two people who had fainted in the crush. Perhaps it's time to stop selling alcohol at this type of event.
On a happier note, thanks for the kind words. I believe there should be a couple more songs loaded onto youtube once the guitarist has downloaded his wife's video and sorted out the aspect ratio so I'll post links once they're there.
Graeme