There are two things to cherish about the village of Castleton in the Peak District.Number one: It's got a cavern called the Devil's Arse, named for the farting sounds which resound around the cave when flood water subsides.Number two: It's the home of Drenge, the two Derbyshire brothers who make a noise that's mightier than the Devil's Arse and not at all sniggersome.You may remember Drenge from the namecheck they got in Labour MP Tom Watson's resignation letter to Ed Miliband in 2013. "Be...
