Im from Denmark, and have been at Roskilde a couple of times... I worked there last year, and I must kind of disagree in the fact, that no crimilality happens... It does; many fugitives robs tents... There were about 20-40 per day.. Violence could happen Sunday (the last day), which is known as Ragnarok, because everyone goes insane and smashes up camps... Very cool though... I love it!
Dont get me wrong; I have never been robbed, and Roskilde might be the best festival for drinking beers, smoking weed and score chicks... The fact, that there´s a little metal too, makes it even better.. Go there... NOW!
Post Scriptum:
The most laid back, and my favorite festival is definately Wacken... First time I was affraid of my car was gonna get crashed... If you had a car on the campsite at Roskilde, some weirdo would steal or smash it without doubt! Not on Wacken; it´s metallers, who´s got that in common... Everyone are friends downthere... Wacken Rules! See you in 198 days!