One in three revellers at music festivals have items lost or stolen resulting in their experience being "completely ruined", according to a survey.
Festival-goers lose gum boots, have their mobile phones stolen, on average spend up to three hours queuing for the toilet and have only four hours sleep, the survey of 2000 music-lovers showed.
With 135,000 people due to arrive in Glastonbury this week, insurer Allianz Your Cover has warned that a third of them will be a victim of a theft or will lose some of their belongings.
The insurer's survey said 30 per cent of victims admitted it "completely ruined their festival experience".
The study found that the average person takes €200 to spend, while some campers put themselves at risk by taking expensive gadgets with them.