I think Don had already covered the quaint fancy that 'imagination knows no borders' when describing how every scrap of land here in the UK is OWNED by someone else, and those boundaries (whether you prefer to 'imagine' - or rather pretend - that they're not there or not) are clearly demarked with fences, barbed wire and "Private Keep Out" and "Trespassers Will Be Prosecuted" signs. The highlands of Scotland are one of the few areas in the UK that people are free to wander where they like.

My uncles (going back to the eighties here) learned to fix and make motorbikes out of scrap they found at the town dump, a fairly constructive activity you'd suppose for a teenager, building things that work out of other people's rubbish, but no, the cops would come round to tell my grandmother that they were trespassing and stealing! Nan would have none of it though, and instead of telling off the boys, would tell the cops to go and find real criminals instead of hounding kids who were doing no-one any harm!