Here's a website that has lots of interesting information about gypsies and travellers and their cultures.
In Davyhulme, Trafford, where some of my family live, the traveller who was on Big Brother (Paddy) had a house on the edge of the field where my SIL's football team played Sunday League football. He moved after a year. One morning, SIL got there to set up the goalposts, to find three horses grazing on the field. Knowing they belonged to Paddy, a bare knuckle fighter, he was apprehensive about asking him to move them. Paddy came charging out of the house, apologising for having not moved them in time - he put them there to graze because the grass hadn't been mowed. He helped set the goalposts up and bought the team a pint in the pub after the match.
They had a few chats about the (few) travellers who are a public nuisance. They become high profile, whereas people who behave just as badly in their own homes and surroundings are dealt with dfferently. Travellers have values that are different, better and worse than 'us' but they are just another section of our communities who make their living and take are of their families.
Travelers left a mess of litter after the annual Appleby Horse Fair (well worth going to if you get chance). You should see the state of the park and the lane here I live after Theatre in the Park each year. Not a traveller in sight, and we residents kick up a fuss to get it cleaned up immediately. They never learn - it'll happen again next tme.
www.grtleeds.co.uk/Culture/communities.html