A drunken slut.

Otherwise I'm with Swanny. An empty seat next to me is a treasure.

I definitely would not want to sit next to a celebrity. Two reasons. One is that everyone will be coming up to them with a giant grin asking for an autograph or such. And the second reason is that most all the celebs I have met (having lived in LA for many years) are seriously screwed up people. Even when they are drunken sluts, there is just something wrong about them.