Most of us see the fairground only once a year, think of fairground people as a cross between con-men and gypsies -out to take our money from us in the few hours they are in town. But what really goes on in the world of freak shows, hoop-la a stalls and the giant machines? Who are the families who control the fairs and make a fortune from them? Who are the gaff lads with dyed hair, earrings and tattoos who follow the fair for the fun - and the girls?