I was supposed to go to this concert, too, but couldn't make it because of work. Like many other times. Being a bit jealous I am standing in the cabin, serving lunch in first class when I notice a few tough looking guys with tatoos and cool t-shirts. They look quite different than every other first class passenger.
"Do you know who they are?", I ask my colleague while getting ready to serve the drinks. "I have no idea", she answers, "but they are very, very polite".
When I get to the first heavy metal looking guy I tell him "you look like you are in a band", which makes him smile. "Slayer", he grins.