The humble catering rider, which surely started life as a simple hot meal for touring band members, has morphed beyond all recognition to a sprawling wishlist, often with no rhyme or reason.Seasoned headline acts can ask for so little while fresh-faced tour supports demand so much, but what MUST be provided and who decides where to draw the line?Like most things in this industry... it's complicated.James and Gav share their experiences, from 24 McDonald's cheeseburgers to "Gollum Juice",&nbsp...