I commisserated with a couple of coppers patrolling a small Village Music festival in Oxfordshire - I was told that they LOVE Folk and Jazz festival work , as all they have to do is look out for the locals And draw the overtime pay ! Folkies and jazzers drink all day and stay happy - Its the Rock and Pop festivals where they have a coupe of pints of lager and start looking for a fight . And that was a direct quote from a policeman !