Then you're lucky NOX. They have stayed on spare land in my area in the past (thankfully built on now) and during those times several houses were burgled, including mine, a pet dog was stolen and found tied up to a caravan, excrement (human) was piled up along a river path walk with used toilet paper and if you dared to remonstrate with them, their language and bearing was terrifying. Also they left behind several neglected dogs when they left and it was impossible to get hold of these dogs to help them as they were petrified of humans ! I can't abide these people ....